• Daniel Chaparro

Wiko Power U20 - Battery Performance Score

Updated: Aug 25


Battery Capacity mAh: 6000

Smartphone Battery Performance: Ranking #4

Placed No. 2 Smartphone for Battery Performance within the

Entry Tier Ranking Table

Battery Performance Testing and ReviewApril 2021


The Wiko Power U20 is a budget-friendly device coming with some special features like its battery life and 32 GB internal storage (with the possibility to extend up to 256 GB through a Micro SD).

Release Date: January 2020

Product Features and Specification

  • Design: Plastic design available in multiple colours.

  • Main Camera: Triple 13 MP (Main)

2 MP (Macro)

Video: 1080@30fps, 720p@30fps;LED Flash.

  • Selfie Camera: 5 MP, f/2.2.

  • Battery: 6000 mAh

  • Display: 6.82"

  • Size: 173.8 x 78.6 x 9.45 mm

  • Weight: 210g

  • Memory: 32GB RAM: 3GB.

  • Chipset: MediaTek Helio G35 (12 nm)

  • Android: Android 11

  • Software Version: RP1A.200720.011 release-keys

Battery Performance


The Wiko Power U20 is classed as a ViserMark Entry Tier Smartphone (less than 200 EURO).

The overall Battery Performance Score is now a global score taking calculations from Battery Life, Power Efficiency and Charging Times.

From the Wiko Power U20 test results, we have given this Smartphone a ViserMark Battery Performance Score of 62. The Battery Performance Label, being nearer 100 indicates that it is one of the better-performing ones and has been ranked in 4th place of the best Battery Performance Smartphones as tested by SmartViser.

Testing Results

BATTERY LIFE - Days of Use

Through the ViserMark test protocol, the Wiko Power U20 battery life lasts over 96 hours and it obtains a ViserMark Battery Life Score of 4 Days of Use.

The average ViserMark Battery Life score of Entry Tier Smartphones is 2.2 Days of Use. The Wiko Power U20 is much more superior, giving around 4 days of autonomy. However, it is very important to consider the 6000mAh battery powering the Smartphone. Also this positions Wiko Power U20 in the Top 5 of the ViserMark Battery Life autonomy ranking.

CHARGING TIME - Hours and Minutes

To reach the full 100% the Charging Time was 4 hours and 13 minutes. The average Charging Time is 1:46 for a Smartphone within the ViserMark Entry Tier.

  • Best Smartphone for Charging Times: Ranking #72

  • Currently in the lower part of the Smartphones with the Best Charging Times

Test Graphics

Our testing is based on real smartphone usage from 100% battery level down to Power Off. When testing Smartphones, the testing protocol includes common daily life activities, for instance: Calls, Web, Video and Music streaming, Gaming, Social networks, Picture & Video capture and standby.

All testing is performed under strictly controlled test conditions with all activities being executed in a defined order and timeline.

Figure 1. Battery test at 90 Hz

Wiko Power U20 Test Graphics

There are a number of power-efficient processors, within today's Smartphones, that are able to cope with the growing number of new applications and can support high-resolution displays without compromising battery life.

Power Efficiency is calculated using Battery Life and Battery Capacity. This is expressed in “Leaves" and reflects a rating between 1 being least and 5 being the most power-efficient.

The Wiko Power U20 achieved an overall Power Efficiency Score of 2.5

  • Best Smartphone for Power Efficiency: Ranking #4


To conclude, the Wiko Power U20 performance stands on the top of the ViserMark ranking with a Battery Life Score of 4 days for autonomy and a 62 as a Visermark battery Performance Score. The Wiko Power U20 matches one other Entry Tier Smartphones with a 6000 mAh battery, the Realme 7i (6000 mAh) scoring 62 as well. The Wiko View 5 has the Best Battery Performance Score of 68 within this Entry Tier.

ViserMark tests are performed with the strictest protocol in a controlled environment to ensure repetition and consistency powered and automated by SmartViser’s test automation solution viSer. The automation test includes a variety of user actions from calls to social media and periods of standby times.