SM-G998B · 4 versions · 19,844 samples
Android
15 Vanilla Ice Cream
Battery
5000 mAh
Technology
Li-Ion
Chipset
exynos2100
Memory
12/256 GB
Display
1080x2400 (60Hz)
Model
SM-G998B
Android
15 Vanilla Ice Cream
Battery
5000 mAh
Technology
Li-Ion
Chipset
exynos2100
Memory
12/256 GB
Display
1440x3200 (120Hz)
Model
SM-G998B
Android versions
15 Vanilla Ice Cream · 14 Upside Down Cake
Battery
5000 mAh
Technology
Li-Ion
Chipset
lahaina
Memory options
12/256 GB · 12/128 GB · 16/512 GB
Display
1080x2400 (60Hz)
Model
SM-G998B
Android versions
15 Vanilla Ice Cream · 14 Upside Down Cake · 12 S · 11 R
Battery
5000 mAh
Technology
Li-Ion
Chipset
lahaina
Memory options
16/512 GB · 16/511 GB · 12/128 GB · 12/256 GB
Display
1440x3044 (120Hz)
Model
SM-G998B
Estimated charging time
2h 0min
to charge 0 → 100%
Max charging temperature
37.7°C
average peak while charging
Screen-on time
6h 0min
estimated on a full charge
Estimated battery life
17h 30min
estimated on a full charge
See your own charging speed, screen-on time and battery health in real time with Battery Guru.
Get Battery GuruSpotted a mistake?
Specs or numbers look off for the Samsung Galaxy S21 Ultra 5G? Let us know and we'll fix it.
The Samsung Galaxy S21 Ultra 5G packs a 5000 mAh Li-Ion battery and lasts about 17h 30min on a full charge with around 6h 0min of screen-on time. It charges from 0 to 100% in roughly 2h 0min, peaking near 37.7°C while charging. Every figure is aggregated anonymously from real Galaxy S21 Ultra 5G owners using Battery Guru (161 samples), so it reflects everyday usage rather than lab claims.
Based on 161 anonymized samples from Battery Guru.
Aggregated Battery Guru data shows the Samsung Galaxy S21 Ultra 5G lasts about 17h 30min on a full charge, with roughly 6h 0min of screen-on time.
The Galaxy S21 Ultra 5G charges from 0 to 100% in approximately 2h 0min, with charging temperatures peaking around 37.7°C.
The Galaxy S21 Ultra 5G has a 5000 mAh Li-Ion battery.
It is aggregated anonymously from real Galaxy S21 Ultra 5G owners using the Battery Guru app (161 samples), reflecting real-world usage rather than manufacturer specifications.