specdeviceinfo

Galaxy S21 Ultra 5G

SM-G998U · Samsung

SoC
Snapdragon 888
RAM
12 GB LPDDR5
Resolution
3200x1440
Android API
12 (31)
specdeviceinfo analysis

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-G998U is built around the Snapdragon 888, a current or recent flagship-tier SoC from Qualcomm. It launched in 2020 on a Samsung 5nm 5LPE process. The 2021 flagship cycle SoC, ubiquitous in that year's Android flagships.

Still strong in 2026 for daily tasks and most gaming. Known for warm operation, but well-cooled phones remain usable as daily drivers.

Day-to-day workload

12 GB LPDDR5 of RAM is ample for any current workload, including multitasking-heavy use and on-device AI. Display resolution is 3200x1440.

This record reflects Android API level 31 (12). Android 12 — at the edge of current support; most apps still work but some new features may not be available.

Trust & buying notes

If you're cross-checking a phone advertised as a samsung SM-G998U, the fields most worth verifying are: Build.MANUFACTURER lowercase-equal to "samsung"; Build.SOC_MODEL set (Android 12+) and consistent with Snapdragon 888. For an automated check, run our Hardware Trust Score from the DevCheck AI app and compare its output against this entry.

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-G998U
MODEL_NAME
Galaxy S21 Ultra 5G
PRODUCT
p3qsqw

Operating System

API
12 (31)
KERNEL
5.4.147-qgki-24343067-abG998USQU5CVGB
PLATFORM
qcom

SoC / CPU

SOC
Snapdragon 888
CPU
sm8350
CORES
8
FAMILY
Cortex-X1 Cortex-A78 Cortex-A55
CLUSTERS
1 x 2.84 GHz 3 x 2.42 GHz 4 x 1.80 GHz
CLOCK_SPEED
300 - 2841 MHz
REVISION
r1p0 r1p0 r2p0
TECHPROCESS
5 nm

GPU

GPU_VENDOR
Qualcomm
GPU_MODEL
Adreno (TM) 660
GPU_CLOCK
315 - 840 MHz
GPU_VERSION
3.2 V@0530.0 (GIT@cac6e6f805, I5187d04b75, 1637574833) (Date:11/22/21)

Memory & Storage

RAM
12 GB LPDDR5
FLASH
UFS

Display

RESOLUTION
3200x1440
TOUCHSCREEN
slsi_ts

Sensors

ACCELEROMETER
LSM6DSO
GYROSCOPE
LSM6DSO
MAGNETOMETER
AK09918
BAROMETER
lps22hh
ALSPS
TMD4912 Palm
FINGERPRINT_SENSOR
qbt2608

Connectivity

WIFI
BCM4389C1
NFC
pn547

Audio & Power

AUDIO
cs35l41 cs40l2x cs35l41
CHARGER
mfc-charger pca9468-charger

Other

PMIC
max77705
OTHER
unk01 unk06 unk09 unk18 unk1e unk23 unk25 unk28 unk29 unk36 unk51 unk56 unk59 unk60 unk62 unk69 unk6a

Related devices

Other phones in our database with similar hardware — same brand or same SoC.

DevCheck AI · v1.0.4

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DevCheck AI cross-checks 8 hardware signals on your Android device — CPU cores, ABI, SoC↔GPU vendor pairing, sensor presence, build fingerprint structure and more — and gives a single Hardware Trust Score.

  • Hardware Trust Score
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  • Multi-source thermal monitoring