S21
S21 · Alps
- SoC
- Helio P25 series
- RAM
- 6 GB LPDDR4
- Resolution
- 1920x1080
- Android API
- 8.0 (26)
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 alps S21 reports its platform as Helio P25 series. The CPU configuration is 8-core, Cortex-A53 Cortex-A53, running up to 247 - 2392 MHz. The GPU is ARM Mali-T880. 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
6 GB LPDDR4 of RAM is adequate for mainstream daily use; modern games may benefit from closing background apps. Display resolution is 1920x1080.
This record reflects Android API level 26 (8.0). Android 8–9 — legacy; many banking and DRM apps drop support at this level.
Trust & buying notes
Because this entry runs Android 8.0, 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
- alps
- BRAND
- alps
- MODEL
- S21
- PRODUCT
- full_s21v57c2k_ysf_p
Operating System
- API
- 8.0 (26)
- KERNEL
- 4.4.83
- PLATFORM
- mt6757
SoC / CPU
- SOC
- Helio P25 series
- CPU
- MT6757CD
- CORES
- 8
- FAMILY
- Cortex-A53 Cortex-A53
- CLUSTERS
- 4 x 2.39 GHz 4 x 1.69 GHz
- CLOCK_SPEED
- 247 - 2392 MHz
- REVISION
- r0p4 r0p4
- TECHPROCESS
- 16 nm
GPU
- GPU_VENDOR
- ARM
- GPU_MODEL
- Mali-T880
- GPU_VERSION
- 3.2 v1.r18p0-00cet0.31096d938f6f64bb2ec1de8405ab6460
Memory & Storage
- RAM
- 6 GB LPDDR4
Display
- RESOLUTION
- 1920x1080
- TOUCHSCREEN
- gt1x
Sensors
- ACCELEROMETER
- ICM206XX_ACCEL
- GYROSCOPE
- ICM206XX_GYRO
- MAGNETOMETER
- qmcX983
- BAROMETER
- HSPPAD030
- ALSPS
- LIGHT
- FINGERPRINT_SENSOR
- +
Connectivity
- WIFI
- CONSYS_MT6757
- NFC
- mt6605
Audio & Power
- AUDIO
- TFA98XX
- CHARGER
- USE PMIC
Other
- LENS
- MAINAF SUBAF
- PMIC
- rt5081_pmu
- OTHER
- unk09 unk10 unk1a unk1e unk2f unk50
Related devices
Other phones in our database with similar hardware — same brand or same SoC.
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