Samsung Galaxy Z Fold8
- Marcella Frattari
- 5 days ago
- 15 min read
SMARTPHONE TIER: FLAGSHIP/PRO TIER
Battery Capacity mAh: 4800
Samsung Galaxy Z Fold8: A Compact Foldable with Outstanding Battery Life
SMARTPHONE BATTERY PERFORMANCE
Based on Price: Flagship/Pro Tier (€700+)
Flagship/Pro Tier Ranking #1
Learn more:
Video Review - Soon Available
The Samsung Galaxy Z Fold8 represents a more ambitious evolution of Samsung’s foldable portfolio, introducing a distinctive passport-style format designed to balance portability with an immersive tablet-like experience. Shorter and wider than previous Galaxy Z Fold devices, it feels more natural when closed while offering a spacious display for entertainment, reading, and multitasking when unfolded. Combined with substantial improvements in battery efficiency, the Fold8 delivers one of Samsung’s most complete foldable experiences to date.
At its core sits the Snapdragon 8 Elite Gen 5 for Galaxy, Qualcomm’s latest flagship processor, paired with the Adreno 840 GPU. With 12GB or 16GB of RAM and storage options ranging from 256GB to 1TB, the Z Fold8 provides the performance required for demanding multitasking, high-end gaming, and AI-assisted applications. The wider internal display allows up to three apps to run side by side, while overall navigation remains fast and responsive. Extended gaming sessions can cause the device to become warm, but everyday performance remains consistently smooth.
The display configuration is one of the device’s defining features. On the outside, the 5.5-inch Dynamic AMOLED 2X cover display offers a resolution of 1248x1972 and a practical 10:16 aspect ratio for messaging, browsing, and social media. Unfolding the device reveals a 7.6-inch Dynamic AMOLED 2X display with a resolution of 1848x2448 and a tablet-like 4:3 aspect ratio. Both displays support an adaptive refresh rate of between 1Hz and 120Hz and reach a peak brightness of up to 2600 nits. The anti-reflective finish, vibrant colours, and less visible central crease create an excellent experience for reading, gaming, video playback, and multitasking.
Design-wise, the Galaxy Z Fold8 is a more radical departure from previous generations. Its shorter, wider dimensions give it a passport-like shape that feels compact and distinctive, while its 201g weight makes it lighter than many conventional flagship smartphones. It measures just 4.5mm when unfolded and 9.7mm when closed, allowing it to fit comfortably into a pocket despite its dual-screen construction. Samsung’s Flex Titanium display structure combines a titanium-alloy film with an enhanced titanium plate to support a thinner and more durable foldable panel, while the Armor FlexHinge provides a rigid folding mechanism. However, the Z Fold8 does not support the partially folded Flex Mode available on some other Samsung foldables.
The device carries an IP48 rating, providing water resistance and protection against solid objects larger than 1mm. However, this does not offer complete protection against fine dust or sand. Gorilla Glass Ceramic 3 protects the cover display, while Gorilla Glass Victus 2 is used on the rear of the device. The Fold8 is available in Lavender, Graphite, Cream, and the Samsung-exclusive Pistachio finish, although colour availability may vary between markets.
Photography is capable but not the Fold8’s primary focus. The rear camera system combines a 50MP main camera with optical image stabilisation and a 50MP ultrawide camera. It is supported by 10MP cameras on both the cover and internal displays. The main camera produces detailed images with attractive colours and dependable dynamic range, while the ultrawide provides greater flexibility for landscapes and group photographs. Video recording is available at up to 8K at 30fps, alongside stabilisation and AI-assisted features such as My FanCam. However, the absence of a dedicated telephoto camera limits optical zoom capabilities and may disappoint users expecting a more versatile camera system at this price.
Battery performance is where the Galaxy Z Fold8 distinguishes itself most clearly. It also supports 45W wired charging, reaching up to 63% in approximately 30 minutes under Samsung’s laboratory conditions. It supports 20W wireless charging and Wireless PowerShare for charging compatible accessories and other devices. The 45W power adapter is sold separately.
The Galaxy Z Fold8 runs Android 17 with One UI 9, providing a mature software experience adapted to its unusual screen proportions. Tablet-style application layouts, drag-and-drop functionality, split-screen multitasking, Samsung DeX, Galaxy AI, and Gemini Intelligence all take advantage of the larger internal display. However, some third-party applications and games do not scale perfectly across its unusual screen ratios. The absence of S Pen support also prevents the Fold8 from fully replacing a dedicated productivity tablet for users who rely on handwritten notes or precise stylus input.
With Wi-Fi 7, Bluetooth 6.0, 5G, stereo speakers, NFC, UWB, dual-SIM functionality, and a fingerprint sensor integrated into the side button, the Samsung Galaxy Z Fold8 covers the essential features expected from a premium foldable. Its high price, limited optical zoom, and lack of Flex Mode remain notable compromises, but its compact format, excellent displays, flagship performance, and above-average ViserMark battery results make it one of Samsung’s most convincing foldable smartphones yet.
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ViserMark Labels for the Samsung Galaxy S26
Please take a look at the following information about the battery performance of the Samsung Galaxy Z Fold8:
Battery Life: The Samsung Galaxy Z Fold8 delivers up to 60 hours of use under the ViserMark testing protocol, equivalent to approximately two days of moderate usage. Its 4800mAh battery outperforms the Galaxy S26, Galaxy Z Fold6, and the Flagship/Pro Tier average, providing strong endurance across gaming, video playback, and web browsing.
Battery Charging: Samsung advertises 45W Super Fast Charging 2.0 for the Galaxy Z Fold8, alongside 20W wireless charging. However, in ViserMark testing, the device required 2 hours and 29 minutes to reach a full charge, making charging speed one of its weaker battery-performance areas.
Battery Performance & Efficiency: : Efficiency is one of the Galaxy Z Fold8’s most significant strengths. Its estimated annual energy consumption is approximately 2.6 kWh. With a ViserMark Battery Performance Score of 52/100 and a Battery Efficiency Rating of two leaves, the Fold8 outperforms other similar devices.
Specification Overview - Released Date: August 2026
Body & Build:
Dimensions:
Folded: 123.9 x 81.9 x 9.7 mm
Unfolded: 123.9 x 161.4 x 4.5 mm
Weight: 201g
Materials: Armour Aluminium frame, Gorilla Glass Ceramic 3 front, Gorilla Glass Victus 2 back, and Flex Titanium display structure
Hinge: Armour FlexHinge
Durability: IP48 certified, water resistant in up to 1.5m of freshwater for 30 minutes
Design: Compact passport-style format and Samsung’s lightest Galaxy Z Fold to date
Display:
Main Display:
Size: 7.6-inch Dynamic AMOLED 2X
Resolution: 2448 x 1848 (QXGA+), 403 ppi
Aspect Ratio: 4:3
Refresh Rate: 1–120Hz adaptive
Cover Display:
Size: 5.5-inch Dynamic AMOLED 2X
Resolution: 1972 x 1248 (WUXGA+), 428 ppi
Aspect Ratio: 10:16
Refresh Rate: 1–120Hz adaptive
Brightness: Up to 2600 nits peak
HDR Support: HDR10+
Protection: Gorilla Glass Ceramic 3 on the cover display
Operating System:
OS: Android 17 with One UI 9
Support: Up to seven generations of OS upgrades and seven years of security updates
Features: Galaxy AI, Gemini Intelligence, Multi Window, and Samsung DeX
Chipset & Performance:
Processor: Snapdragon 8 Elite Gen 5 for Galaxy
CPU: Octa-core, clocked at up to 4.74GHz
GPU: Adreno 840
Platform: Customised for Galaxy with enhanced CPU, GPU, NPU, and AI performance
Memory & Storage:
Configurations:
256GB + 12GB RAM
512GB + 12GB RAM
1TB + 16GB RAM
Expandable Storage: Not supported
Connectivity & Features:
5G: Yes
SIM: Dual SIM with Nano-SIM and eSIM support
Wi-Fi: Wi-Fi 7
Bluetooth: 6.0
NFC / UWB: Yes / Yes
USB-C: USB 3.2 Gen 1 with DisplayPort support
Biometrics: Fingerprint sensor integrated into the side button
Samsung DeX: Supported
Audio: Stereo speakers
S Pen: Not supported
Flex Mode: Not supported
Camera System:
Rear Cameras:
50MP main camera (f/1.8, OIS, Dual Pixel autofocus)
50MP ultrawide camera (f/1.9, 120° field of view)
Cover Camera:
10MP (f/2.2, 85° field of view)
Main Screen Camera:
10MP (f/2.2, 100° field of view)
Zoom: 2x optical-quality zoom and up to 10x digital zoom
Video: Up to 8K at 30fps, with Super Steady and Horizontal Lock
Colours Available: Lavender, Graphite, Cream, and Pistachio
Performance - HOW WE TEST
ViserMark offers a comprehensive range of battery performance test results based on different criteria and benchmarks for evaluating a smartphone's performance. Our tests are performed using the strictest protocol in a controlled environment to ensure repetition and consistency powered by SmartViser's test automation solution viSer.
VWS Analytics Studio is a complementary product to the viSer Test Automation solution. It enhances the viSer user experience and is the fastest way to analyse and view smartphone test results.
We have used the interactive dashboard to show you the recent test results and translated them into ViserMark Labels.
Join our readers to receive the latest update to our smartphone battery performance scores and performance reviews as soon as we finish testing!
Smartphone Battery Performance - FULL TEST RESULTS AND REVIEW
ViserMark has put the Samsung Galaxy Z Fold8 through our testing protocol, based on real smartphone usage from 100% battery level down to power off. This includes daily activities, such as calls, web, video and music streaming, gaming, social networks, picture and video capture, and standby. All activities are executed in a defined order and timeline.
These test results, show how the Samsung Galaxy Z Fold8 performed and the scores achieved.
1. Battery Performance
The Samsung Galaxy Z Fold8 achieved a battery performance score of 52/100 in ViserMark testing, placing it ahead of the Galaxy S26 at 47/100, the Galaxy Z Fold6 at 44/100, and the Flagship/Pro Tier average of 42.22/100. This result reflects a significant improvement in power management, allowing the Fold8 to deliver strong endurance despite its dual-display foldable design.
Samsung advertises 45W Super Fast Charging 2.0, claiming up to 63% charge in approximately 30 minutes with a compatible adapter. However, in our testing, the device required 2 hours and 29 minutes to reach a full charge. It also supports 20W wireless charging and Wireless PowerShare, although the compatible 45W adapter is sold separately.
Overall, the Galaxy Z Fold8 combines strong efficiency with impressive endurance, delivering 60 hours, or approximately two days, of use. Its excellent battery score and low annual energy consumption make it one of the strongest performers in this comparison, although its slow full charging time remains a notable weakness.
2. Battery Life
In ViserMark’s battery life testing, the Samsung Galaxy Z Fold8 achieved 60 hours of continuous usage, translating to approximately two days of real-world battery life under typical conditions. This places it ahead of the Galaxy S26 at 48 hours, the Galaxy Z Fold6 at 43 hours, and the Flagship/Pro Tier average of 41.48 hours.
Despite powering two displays, the Z Fold8 demonstrates excellent efficiency across mixed workloads. Its Snapdragon 8 Elite Gen 5 for Galaxy processor and One UI 9 optimisation contribute to particularly strong performance during gaming, video playback, media use, and web browsing.
Overall, the Galaxy Z Fold8 delivers dependable two-day endurance while retaining its compact foldable design and flagship performance. This makes it a compelling choice for users seeking the versatility of a foldable without accepting the shorter battery life traditionally associated with this format.
The Samsung Galaxy Z Fold8 and Samsung Galaxy S26 were analysed for battery consumption across various daily tasks using SmartViser's viSer and VWS Analytics Studio. The comparison highlighted differences in power usage for activities such as social media, calls, gaming, camera, and web browsing.
Despite powering a dual-display foldable design, the Galaxy Z Fold8 consumes less power than the Galaxy S26 in eight of the nine activities tested. Its most significant advantages appear in gaming, YouTube, and Replay, where the difference between the two devices is particularly noticeable.
The Z Fold8 also records lower consumption during social media, download and upload tasks, and web browsing. These results indicate effective optimisation across connectivity, data processing, and display-intensive workloads.
The difference is smaller during camera and media-player use, where the two devices deliver relatively similar consumption results. The Fold8 nevertheless maintains a slight efficiency advantage in both activities.
Outgoing calls are the only workload in which the Galaxy S26 performs better. The Fold8 draws noticeably more power during calls, suggesting that its call-related connectivity and background processes are less efficiently managed.
Overall, the Samsung Galaxy Z Fold8 demonstrates stronger power efficiency than the Galaxy S26 across most tested activities. Its particularly low consumption during gaming, video streaming, Replay, and web browsing contributes to its longer battery life, although outgoing-call consumption remains an area for improvement.
The Samsung Galaxy Z Fold8 and Galaxy Z Fold6 show substantial differences in power consumption across key usage scenarios, highlighting the progress Samsung has made in battery optimisation between the two generations.
The Galaxy Z Fold8 consumes considerably less power during social media, outgoing calls, and download/upload activities. These are the most significant improvements in the comparison, indicating more efficient connectivity, data handling, and background processing.
The Fold8 also performs better during gaming, YouTube streaming, Replay, media playback, and web browsing. Its lower consumption across these sustained workloads contributes directly to its longer battery life and stronger overall Battery Performance Score.
Camera usage is the only activity in which the Galaxy Z Fold6 holds a slight advantage. However, the difference between the two devices is marginal and is unlikely to have a significant impact on everyday usage.
Overall, the Galaxy Z Fold8 represents a clear improvement in energy efficiency over the Galaxy Z Fold6. It consumes less power in almost every activity tested, demonstrating that Samsung has successfully improved endurance despite the Fold8’s redesigned format and dual-display construction.
The battery performance comparison between the Samsung Galaxy Z Fold8, Galaxy S26, Galaxy Z Fold6, and the Flagship/Pro Tier average reveals clear differences in power consumption across everyday activities.
The Galaxy Z Fold8 emerges as the most efficient device in most of the tested workloads. It performs particularly well in gaming, YouTube streaming, and Replay, consuming considerably less power than the other two Samsung devices and the tier average.
The Fold8 also records strong results during social media and download/upload activities. Its consumption remains below the Galaxy S26, Galaxy Z Fold6, and Flagship/Pro Tier average, indicating effective optimisation in connectivity, background processing, and data handling.
Media playback and web browsing further reinforce the Z Fold8’s advantage. It delivers the lowest consumption in both activities, demonstrating that its dual-display design does not prevent it from performing efficiently during sustained everyday workloads.
Outgoing calls present a more nuanced result. The Galaxy S26 is the most efficient device in this activity, while the Fold8 consumes more power. However, it still performs better than both the Galaxy Z Fold6 and the Flagship/Pro Tier average.
Camera usage is closely matched between the three Samsung devices. The Galaxy Z Fold6 holds a slight advantage, followed closely by the Fold8 and Galaxy S26, while all three perform considerably better than the tier average.
In conclusion, the Samsung Galaxy Z Fold8 delivers the strongest overall power-consumption profile in this comparison. It leads in most everyday and media-focused activities, with outgoing calls and camera use being the only scenarios in which another device performs better.
In ViserMark’s battery efficiency testing, the Samsung Galaxy Z Fold8 achieved a two-leaf rating, placing it ahead of the Galaxy S26 at 1.5 leaves, the Galaxy Z Fold6 at 1 leaf, and the Flagship/Pro Tier average of 1.04 leaves.
Despite its dual-display foldable design and 4800mAh battery, the Z Fold8 demonstrates effective power management across hardware and software. The Snapdragon 8 Elite Gen 5 for Galaxy and One UI 9 contribute to particularly efficient performance during gaming, video playback, media use, and web browsing.
Compared with the Galaxy Z Fold6, the Fold8 delivers more consistent efficiency across almost every workload tested. These improvements contribute to its longer 60-hour battery life and stronger overall Battery Performance Score.
The two-leaf rating confirms that the Galaxy Z Fold8 performs well above the current Flagship/Pro Tier average. It represents a significant improvement in Samsung’s foldable battery efficiency, combining extended endurance with flagship performance and a compact dual-screen design.
According to ViserMark, the Samsung Galaxy Z Fold8 has an estimated annual energy consumption of 2.6 kWh, placing it ahead of the Galaxy S26 at 2.9 kWh, the Galaxy Z Fold6 at 3.3 kWh, and the Flagship/Pro Tier average of 3.71 kWh.
This result is particularly notable for a foldable smartphone with two displays and flagship-level performance. The Z Fold8 maintains lower long-term energy usage through effective hardware and software optimisation across gaming, video playback, media use, and web browsing.
In practical terms, the Galaxy Z Fold8 delivers the lowest estimated annual energy consumption in this comparison without compromising its performance or foldable functionality. It demonstrates clear progress over the Galaxy Z Fold6 and reinforces the Fold8’s position as an efficiency-focused premium device.
Who Should Buy the Samsung Galaxy Z Fold8?
The Galaxy Z Fold8 is ideal for users who want a foldable primarily for entertainment and everyday content consumption. Its compact passport-style design, lightweight construction, and wide 7.6-inch internal display make it particularly well suited to watching videos, gaming, browsing social media, reading, and casual multitasking.
Battery performance is one of its strongest qualities. In our testing, the Z Fold8 delivered 60 hours of use, alongside a Battery Performance Score of 52/100 and low annual energy consumption. This makes it suitable for commuters, frequent travellers, and heavy media users who want a foldable that can comfortably last beyond a full day.
The device is also a compelling entry point for users purchasing their first book-style foldable. Its 201g construction, compact dimensions, minimal display crease, and easier-to-open design make it more approachable than many traditional foldables. One UI 9, Samsung DeX, Galaxy AI, and flexible split-screen tools also provide useful productivity features when required.
However, productivity-focused users may prefer the Galaxy Z Fold8 Ultra, which offers larger displays, more vertical workspace, Flex Mode, and a more advanced camera system. The standard Fold8 lacks S Pen support, a telephoto camera, and Flex Mode, while some applications require additional scrolling or display-scaling adjustments.
It is also less suitable for users who prioritise fast charging, as the device required 2 hours and 29 minutes to reach a full charge in ViserMark testing. Its premium price and limited protection against fine dust should also be considered before purchase.
Ultimately, the Galaxy Z Fold8 is best suited to users who prioritise portability, media consumption, gaming, and strong battery life. It offers a more accessible and enjoyable foldable experience than many productivity-focused alternatives, provided its camera, charging, and stylus limitations are not essential concerns.
ViserMark VERDICT
The Samsung Galaxy Z Fold8 - what's it like to use?
Using the Galaxy Z Fold8 feels noticeably different from using either a conventional smartphone or a traditional book-style foldable. Its short, wide shape makes it compact and easy to carry, while the 201g construction prevents it from feeling excessively heavy. The cover screen works well for quick messages and everyday checks, although its reduced vertical space means more scrolling and may require some adjustment.
The 7.6-inch internal display is the highlight of the experience. Its wide 4:3 format makes watching videos, gaming, reading, browsing, and viewing photos particularly enjoyable, with minimal black borders around much of the content. The reduced crease and anti-reflective coating help the screen feel more like a small tablet, while One UI 9 provides smooth split-screen multitasking and drag-and-drop functionality. However, some applications and games do not scale perfectly to the unusual proportions.
Performance is consistently fast and responsive. The Snapdragon 8 Elite Gen 5 for Galaxy and up to 16GB of RAM handle demanding applications, multitasking, and gaming without noticeable slowdown, although the device can become warm during extended gaming sessions. The absence of Flex Mode and S Pen support slightly reduces its versatility compared with more productivity-focused foldables.
Overall, the Galaxy Z Fold8 feels fresh, compact, and particularly enjoyable for media consumption. It offers a convincing balance between smartphone portability and tablet-style immersion, although the short cover display, limited camera system, slow charging, and occasional app-scaling issues remain important compromises.
VCX (Valued Camera eXperience)
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Background
The Samsung Group is a South Korean multinational conglomerate headquartered in Samsung Town, Seoul. It comprises numerous affiliated businesses, most united under the Samsung brand. Samsung Electronics has assembly plants and sales networks in 74 countries and employs around 290,000 people. Samsung is a major manufacturer of electronic components such as lithium-ion batteries, semiconductors, image sensors, camera modules and displays for clients such as Apple, Sony, HTC and Nokia.
Written by
Marcella Frattari is the Communication Marketing and Lead Generation Manager at SmartViser, playing a key role in shaping the company's communication and marketing strategies. With a background in journalism and a passion for digital communication, Marcella focuses on improving SmartViser's overall online presence and engagement. Her dedication to clear, effective communication and creative content makes her a valuable asset to the team.
Press Contact
Marcella Frattari: Contact@visermark.com
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