Galaxy S21 5G
SM-G991B · Samsung
- SoC
- Exynos 2100
- RAM
- 8 GB LPDDR5
- Resolution
- 2400x1080
- Android API
- 15 (35)
What this hardware actually means
Editorial interpretation generated from the device's self-reported fields and our SoC tier database. Cross-reference with the raw fields below; if you spot a contradiction, please tell us.
Platform & performance positioning
The samsung SM-G991B reports its platform as Exynos 2100. The CPU configuration is 8-core, Cortex-X1 Cortex-A78 Cortex-A55, running up to 400 - 2912 MHz. The GPU is ARM Mali-G78. Without a confirmed SoC tier mapping for this platform string, we treat the device as unverified. If you're using this entry to compare against a phone you're inspecting, focus on the raw fields below rather than tier-level conclusions.
Day-to-day workload
8 GB LPDDR5 of RAM is comfortable for modern apps and moderate multitasking. Display resolution is 2400x1080.
This record reflects Android API level 35 (15). Android 14 or newer — modern security baseline, supported by all current banking and payment apps.
Trust & buying notes
For a second-hand purchase, also verify the security patch date is no more than ~12 months old, the boot count is plausible for the claimed age, and battery health is above 85%.
Identity
- MANUFACTURER
- samsung
- BRAND
- samsung
- MODEL
- SM-G991B
- MODEL_NAME
- Galaxy S21 5G
- PRODUCT
- o1sxeea
Operating System
- API
- 15 (35)
- KERNEL
- 5.4.242-30958140-abG991BXXSJHZA6
- PLATFORM
- exynos2100
SoC / CPU
- SOC
- Exynos 2100
- CPU
- Exynos 2100
- CORES
- 8
- FAMILY
- Cortex-X1 Cortex-A78 Cortex-A55
- CLUSTERS
- 1 x 2.91 GHz 3 x 2.81 GHz 4 x 2.21 GHz
- CLOCK_SPEED
- 400 - 2912 MHz
- REVISION
- r1p0 r1p0 r2p0
- TECHPROCESS
- 5 nm
GPU
- GPU_VENDOR
- ARM
- GPU_MODEL
- Mali-G78
- GPU_CLOCK
- 312 - 858 MHz
- GPU_VERSION
- 3.2 v1.r38p0-01eac0-mbs2v41_0.4ef6e1c9ba431853d05b271234c3d1c5
Memory & Storage
- RAM
- 8 GB LPDDR5
- FLASH
- UFS
Display
- RESOLUTION
- 2400x1080
- TOUCHSCREEN
- slsi_ts
Sensors
- ACCELEROMETER
- LSM6DSO
- GYROSCOPE
- LSM6DSO
- MAGNETOMETER
- AK09918C
- BAROMETER
- LPS22HHTR
- ALSPS
- TMD4912 Palm
- FINGERPRINT_SENSOR
- qbt2608
Connectivity
- WIFI
- BCM4375B1
- NFC
- pn547
Audio & Power
- AUDIO
- cs35l41 cs35l41
- CHARGER
- mfc-charger pca9468-charger
Other
- CAMERA
- S5K3J1 S5K2LD IMX563 S5KGW2
- LENS
- AK737X
- PMIC
- max77705
- OTHER
- ISG5320A dummy is_eeprom_i2c k250a s2mpb02 s2mps23 s2mps24 unk01 unk01 unk0a unk0a unk0f unk0f unk0f unk29 unk36 unk51 unk51 unk62 unk69
Related devices
Other phones in our database with similar hardware — same brand or same SoC.
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