SM-G998B · 4 versions · 72,925 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 · 11 R
Battery
5000 mAh
Technology
Li-Ion
Chipset
lahaina
Memory options
16/511 GB · 12/128 GB · 16/512 GB · 12/256 GB
Display
1440x3200 (120Hz)
Model
SM-G998B
Estimated charging time
2h 0min
to charge 0 → 100%
Max charging temperature
39.6°C
average peak while charging
Screen-on time
7h 30min
estimated on a full charge
Estimated battery life
24h 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 24h 30min on a full charge with around 7h 30min of screen-on time. It charges from 0 to 100% in roughly 2h 0min, peaking near 39.6°C while charging. Every figure is aggregated anonymously from real Galaxy S21 Ultra 5G owners using Battery Guru (595 samples), so it reflects everyday usage rather than lab claims.
Based on 595 anonymized samples from Battery Guru.
Aggregated Battery Guru data shows the Samsung Galaxy S21 Ultra 5G lasts about 24h 30min on a full charge, with roughly 7h 30min of screen-on time.
The Galaxy S21 Ultra 5G charges from 0 to 100% in approximately 2h 0min, with charging temperatures peaking around 39.6°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 (595 samples), reflecting real-world usage rather than manufacturer specifications.