S21 Ultra
S21 Ultra · Welcome
- SoC
- mt6572
- RAM
- 512 MB LPDDR2
- Resolution
- 854x480
- Android API
- 4.4 (19)
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 welcome S21 Ultra is built around the MT6572, a budget SoC from MediaTek. It launched in 2013 on a TSMC 28nm process. Dual-core ultra-budget SoC; the bottom rung of the early-2010s Android stack.
Legacy. Not usable for modern apps.
Day-to-day workload
Display resolution is 854x480.
This record reflects Android API level 19 (4.4). Android 7 or older — effectively retired; very few modern apps will run, and Google Play Services support is limited.
Trust & buying notes
If you're cross-checking a phone advertised as a welcome S21 Ultra, the fields most worth verifying are: Build.MANUFACTURER lowercase-equal to "welcome"; Build.SOC_MODEL set (Android 12+) and consistent with MT6572. For an automated check, run our Hardware Trust Score from the DevCheck AI app and compare its output against this entry.
Because this entry runs Android 4.4, treat it as a reference for older inventory: refurb shops sometimes flash old firmware to make a device look "stock," so a modern build date with this API level is a red flag.
Identity
- MANUFACTURER
- Welcome
- BRAND
- Welcome
- MODEL
- S21 Ultra
- PRODUCT
- S21_Ultra
Operating System
- API
- 4.4 (19)
- KERNEL
- 3.4.67
- PLATFORM
- mt6572
SoC / CPU
- CPU
- MT6572
- CORES
- 2
- FAMILY
- Cortex-A7
- CLOCK_SPEED
- 598 - 1300 MHz
GPU
- GPU_VENDOR
- ARM
- GPU_MODEL
- Mali-400 MP
- GPU_CLOCK
- 299 - 500 MHz
Memory & Storage
- RAM
- 512 MB LPDDR2
- FLASH
- Samsung N5XZMB
Display
- RESOLUTION
- 854x480
- TOUCHSCREEN
- mtk-tpd
Sensors
- ACCELEROMETER
- KXTJ2-1009
- ALSPS
- LIGHT
Audio & Power
- CHARGER
- USE PMIC
Other
- CAMERA
- gc0309_yuvsp0a19_yuvov2659_yuvov2659s_yuv
- SOUND
- amp_6323pmic_spk
- MODEM
- magcomm72_cwet_kk_hspa_b1b2b4b5b8_coclk_v216a
- OTHER
- dummy_cam_cal kd_camera_hw dummy_eeprom
- FLASH_SIZE
- 4 GB
Related devices
Other phones in our database with similar hardware — same brand or same SoC.
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