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Smartphone Annual Energy Consumption Ratings Top Ten Best Smartphones 2021 - 2023

Determining the amount of energy consumed by a smartphone in a year can be difficult due to several factors, such as the type of smartphone, battery capacity, usage patterns, and charging habits. 
 
To address this problem, ViserMark has introduced the Annual Energy Consumption Label, which measures energy consumption in kWh. This label provides an objective benchmark across all devices, allowing consumers to compare different smartphones' expected annual electricity consumption.
This is the first time such a label has been introduced, making it easier for consumers to identify energy-efficient smartphones.

See our Top Ten List of the Best Smartphones for Annual Energy Consumption.  

Apple iPhone 13 Pro Max
Apple iPhone 13 Pro Max

Flagship/Pro Tier

Battery Capacity:

4350mAh

Apple iPhone 13 Pro Max
Wiko Power U20
Wiko Power U20

Entry Tier

Battery Capacity:

6000mAh

Wiko Power U20
PRICE CHECK
RugGear 750
RugGear 750

Mid Tier

Battery Capacity:

5000mAh

RugGear 750
OPPO A76
OPPO A76

Mid Tier

Battery Capacity:

5000mAh

OPPO A76
OPPO A15
OPPO A15

Entry Tier

Battery Capacity:

4320mAh

OPPO A15
Apple iPhone 13 Pro
Apple iPhone 13 Pro

Flagship/Pro Tier

Battery Capacity:

3100mAh

Apple iPhone 13 Pro
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Realme 7i
Realme 7i

Entry Tier

Battery Capacity:

6000mAh

Realme 7i
PRICE CHECK
Realme 8 Pro
Realme 8 Pro

Mid Tier

Battery Capacity:

4500mAh

Realme 8 Pro
PRICE CHECK
Apple iPhone 14 Plus
Apple iPhone 14 Plus

Flagship/Pro Tier

Battery Capacity:

4323mAh

Apple iPhone 14 Plus
Motorola Moto G8 Power
Motorola Moto G8 Power

Entry Tier

Battery Capacity:

5000mAh

Motorola Moto G8 Power

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BATTERY PERFORMANCE RESULTS

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SMARTPHONE

BATTERY PERFORMANCE

ViserMark Label showing Smartphone Battery Performance Score of 43/100/100

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CHARGING TIMES

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BATTERY LIFE

ViserMark Label showing a Smartphone Battery Life of 2 Days or 45 Hours

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SMARTPHONE ANNUAL ENERGY CONSUMPTION

ViserMark Label for Battery Efficiency with 3 leaves

The energy consumption during the charging process primarily depends on the charger's efficiency and battery capacity. Typically, smartphone chargers have an efficiency of around 70-90%.

Also, the energy consumption during active usage varies based on the tasks performed, screen brightness, app usage, and connectivity. Activities like gaming, video streaming, or using power-intensive apps may consume more energy than lighter tasks like texting or browsing web pages. Higher screen brightness settings also require more power.

Individual usage patterns and habits greatly influence energy consumption. For instance, frequent use of power-intensive apps, heavy gaming, or prolonged video streaming can drain the battery faster, resulting in higher energy consumption. Conversely, conservative usage and enabling power-saving features can reduce energy consumption.

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