specdeviceinfo

Xperia 1 III

SO-51B · Docomo

SoC
Snapdragon 888
RAM
12 GB LPDDR5
Resolution
3840x1644
Android API
13 (33)
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 docomo SO-51B 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 3840x1644.

This record reflects Android API level 33 (13). Android 13 — still within current support windows; should run all modern apps.

Trust & buying notes

If you're cross-checking a phone advertised as a docomo SO-51B, the fields most worth verifying are: Build.MANUFACTURER lowercase-equal to "sony"; 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
Sony
BRAND
docomo
MODEL
SO-51B
MODEL_NAME
Xperia 1 III
PRODUCT
SO-51B

Operating System

API
13 (33)
KERNEL
5.4.210-qgki-gfcd993d113af
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
840 MHz
GPU_VERSION
3.2 V@0530.0 (GIT@c263890aed, Ifb496a9c37, 1656315076) (Date:06/27/22)

Memory & Storage

RAM
12 GB LPDDR5
FLASH
UFS

Display

RESOLUTION
3840x1644
TOUCHSCREEN
sec_ts

Sensors

ACCELEROMETER
lsm6dso
GYROSCOPE
lsm6dso
MAGNETOMETER
ak0991x
BAROMETER
bosch_bmp390
ALSPS
stk_stk3x3x
FINGERPRINT_SENSOR
esfp0

Connectivity

WIFI
qca6490
NFC
sn1x0

Audio & Power

AUDIO
cs35l41 cs35l41 cs40l2x
CHARGER
USE PMIC

Other

SOUND
lahainamtpsndca
PMIC
i2c_pmic i2c_pmic i2c_pmic i2c_pmic slg51000-regulator
OTHER
unk38 unk64
DevCheck AI · v1.0.4

Spot a refurbished, cloned, or emulated phone in 3 seconds.

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
  • Real Battery State-of-Health
  • SoC variant + big.LITTLE breakdown
  • Multi-source thermal monitoring