RMX3871 · 1 version · 1,182 samples
Android
16 Baklava
Battery
5000 mAh
Technology
Li-ion
Chipset
bengal
Memory options
8/256 GB · 8/512 GB · 8/128 GB
Display
1080x2400 (120Hz)
Model
RMX3871
Estimated charging time
2h 30min
to charge 0 → 100%
Max charging temperature
37.7°C
average peak while charging
Screen-on time
8h 30min
estimated on a full charge
Estimated battery life
15h 30min
estimated on a full charge
See your own charging speed, screen-on time and battery health in real time with Battery Guru.
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The Realme 12 packs a 5000 mAh Li-ion battery and lasts about 15h 30min on a full charge with around 8h 30min of screen-on time. It charges from 0 to 100% in roughly 2h 30min, peaking near 37.7°C while charging. Every figure is aggregated anonymously from real 12 owners using Battery Guru (668 samples), so it reflects everyday usage rather than lab claims.
Based on 668 anonymized samples from Battery Guru.
Aggregated Battery Guru data shows the Realme 12 lasts about 15h 30min on a full charge, with roughly 8h 30min of screen-on time.
The 12 charges from 0 to 100% in approximately 2h 30min, with charging temperatures peaking around 37.7°C.
The 12 has a 5000 mAh Li-ion battery.
It is aggregated anonymously from real 12 owners using the Battery Guru app (668 samples), reflecting real-world usage rather than manufacturer specifications.