How we scoreBlogAdvertise
android.gsdevices · specs · comparisons
  1. android.gs
  2. Compare
  3. Y31d vs Poco M8s

Vivo Y31d vs Xiaomi Poco M8s

What Y31d does better (6) and where Poco M8s wins (8) — every spec side by side.

Vivo Y31d
Vivo · 2026Y31d
7.5Score
6 advantages≈ $180
vs
Xiaomi Poco M8s
Xiaomi · 2026Poco M8s
7.7Score
8 advantages≈ $170
Higher score
6.6Display8.6
4.6Camera4.6
8.7Battery8.3
6.3Features6.4
Dimensions

Size comparison

Y31dPoco M8s
78.4 × 166.68.480.4 × 169.48.4
Y31dPoco M8sDifference
Height166.6 mm169.4 mm−2.8 mm
Width78.4 mm80.4 mm−2 mm
Thickness8.4 mm8.4 mm=
Weight219 g217 g+2 g

Drawn to the same scale from the official dimensions (front and side).

Why is Y31d better than Poco M8s?

  1. Water resistance (IPx)IPx8 vs IPx42×
  2. Wired charging44 W vs 33 W+33%
  3. Battery capacity7,200 mAh vs 7,000 mAh+3%
  4. Peak brightness1,250 nits vs 850 nits+47%
  5. CPU frequency2.9 GHz vs 2.3 GHz+26%
  6. Wi-Fi standardWi-Fi 5 vs Wi-Fi 4+25%

Why is Poco M8s better than Y31d?

  1. OLED panelNo · Y31d: Yes
  2. NFCNo · Y31d: Yes
  3. Refresh rate120 Hz vs 144 Hz+20%
  4. Pixel density256 ppi vs 374 ppi+46%
  5. Memory card slotNo · Y31d: Yes
  6. Screen size6.8″ vs 6.9″+2%
  7. Resolution (width)720 px vs 1,080 px+50%
  8. Main camera aperturef/2 vs f/1.8+11%
Specifications

Side by side

Vivo Y31dVivo Y31d≈ $1807.5
Xiaomi Poco M8sXiaomi Poco M8s≈ $1707.7
Design
Weight219 g217 g
Thickness8.4 mm8.4 mm
Height166.6 mm169.4 mm
Width78.4 mm80.4 mm
FramePlasticPlastic
BackPlasticPlastic
Ingress protectionIP68IP64
Water resistance (IPx)IPx8IPx4
ColoursGlow White, Starlight GreyBlack, White
Display
Screen size6.8″6.9″
PanelIPS LCDAMOLED
OLED panelNoYes
Resolution (width)720 px1,080 px
Resolution (height)1,570 px2,392 px
Pixel density256 ppi374 ppi
Refresh rate120 Hz144 Hz
Peak brightness1,250 nits850 nits
Screen-to-body ratio85.3%85.8%
Performance
ChipsetQualcomm SM6225-AF Snapdragon 6s 4G Gen 2Qualcomm SM6375 Snapdragon 6s Gen 3
Chip makerQualcommQualcomm
Process6 nm6 nm
CPU cores88
CPU frequency2.9 GHz2.3 GHz
GPUAdrenoAdreno
AnTuTu score—615,528
Geekbench 6 (multi-core)—2,225
Memory
RAM8 GB8 GB
Storage (max)256 GB256 GB
Storage (base)128 GB128 GB
Storage typeUFS 2.2UFS 2.2
Memory card slotNoYes
Camera
Main camera50 MP50 MP
Main camera aperturef/2f/1.8
Rear cameras11
Optical stabilisationNoNo
Ultra-wide cameraNoNo
Telephoto cameraNoNo
Max video1080p1080p
Selfie camera8 MP8 MP
4K selfie videoNoNo
Battery
Battery capacity7,200 mAh7,000 mAh
Battery typeSi/CSi/C
Wired charging44 W33 W
Charged in 30 min35%—
Wireless chargingNoNo
Connectivity
5G—Yes
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 5Wi-Fi 4
Bluetooth5.15.1
NFCNoYes
USBUSB Type-C 2.0USB Type-C 2.0
USB version22
Infrared port—Yes
Satellite navigationGLONASS, GALILEO, BDS, QZSSGLONASS, GALILEO, BDS
Features
Stereo speakersYesYes
3.5 mm headphone jackNoNo
Fingerprint sensorSideSide
SensorsFingerprint (side-mounted), accelerometer, gyro, proximity, compassFingerprint (side-mounted), accelerometer, gyro, compass
Software
OS at launchAndroid 16Android 15
PlatformAndroidAndroid
InterfaceOriginOS 6HyperOS 2
To compare: 0up to 4 models
Compare