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  3. Y31t vs Poco M8

Vivo Y31t vs Xiaomi Poco M8

What Y31t does better (2) and where Poco M8 wins (15) — every spec side by side.

Vivo Y31t
Vivo · 2026Y31t
7.9Score
2 advantages≈ $250
vs
Xiaomi Poco M8
Xiaomi · 2026Poco M8
8.0Score
15 advantages≈ $250
Higher score
6.6Display8.5
4.6Camera6.3
8.7Battery7.6
8.4Features7.7
Dimensions

Size comparison

Y31tPoco M8
78.4 × 166.68.475.4 × 1647.4
Y31tPoco M8Difference
Height166.6 mm164 mm+2.6 mm
Width78.4 mm75.4 mm+3 mm
Thickness8.4 mm7.4 mm+1 mm
Weight219 g178 g+41 g

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

Why is Y31t better than Poco M8?

  1. Battery capacity7,200 mAh vs 5,520 mAh+30%
  2. Water resistance (IPx)IPx8 vs IPx6+33%

Why is Poco M8 better than Y31t?

  1. Peak brightness1,200 nits vs 3,200 nits2.7×
  2. OLED panelNo · Y31t: Yes
  3. Storage (max)256 GB vs 512 GB2×
  4. RAM6 GB vs 8 GB+33%
  5. Pixel density261 ppi vs 388 ppi+49%
  6. Selfie camera8 MP vs 20 MP2.5×
  7. Wired charging44 W vs 45 W+2%
  8. Weight219 g vs 178 g+23%
  9. Memory card slotNo · Y31t: Yes
  10. Max video1080p vs 4K
  11. CPU frequency2.2 GHz vs 2.4 GHz+9%
  12. Resolution (width)720 px vs 1,080 px+50%
Specifications

Side by side

Vivo Y31tVivo Y31t≈ $2507.9
Xiaomi Poco M8Xiaomi Poco M8≈ $2508.0
Design
Weight219 g178 g
Thickness8.4 mm7.4 mm
Height166.6 mm164 mm
Width78.4 mm75.4 mm
FramePlasticPlastic
BackPlasticPlastic
Ingress protectionIP68IP66
Water resistance (IPx)IPx8IPx6
ColoursCrimson Red, Seashore Green, Golden MistBlack, Green, Silver
Display
Screen size6.8″6.8″
PanelIPS LCDAMOLED
OLED panelNoYes
Resolution (width)720 px1,080 px
Resolution (height)1,608 px2,392 px
Pixel density261 ppi388 ppi
Refresh rate120 Hz120 Hz
Peak brightness1,200 nits3,200 nits
Measured brightness—1,473 nits
Screen-to-body ratio83.9%89.7%
HDR—Yes
Performance
ChipsetQualcomm SM4450 Snapdragon 4 Gen 2Qualcomm SM6475-AB Snapdragon 6 Gen 3
Chip makerQualcommQualcomm
Process4 nm4 nm
CPU cores88
CPU frequency2.2 GHz2.4 GHz
GPUAdreno 613Adreno 710
AnTuTu score—631,693
Geekbench 6 (multi-core)—2,898
3DMark Wild Life Extreme—866
Memory
RAM6 GB8 GB
Storage (max)256 GB512 GB
Storage (base)128 GB128 GB
Storage type—UFS 2.2
Memory card slotNoYes
Camera
Main camera50 MP50 MP
Main camera aperturef/1.8f/1.8
Main sensor size—1/2.88"
Rear cameras11
Optical stabilisationNoNo
Ultra-wide cameraNoNo
Telephoto cameraNoNo
Max video1080p4K
4K video frame rate—30 fps
Selfie camera8 MP20 MP
4K selfie videoNoNo
Battery
Battery capacity7,200 mAh5,520 mAh
Battery typeSi/CSi/C
Active use (test)—13.9 h
Wired charging44 W45 W
Charged in 30 min—55%
Wireless chargingNoNo
Connectivity
5GYesYes
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 5Wi-Fi 5
Bluetooth4.25.1
NFCYesYes
USBUSB Type-C 2.0USB Type-C 2.0
USB version22
Infrared port—Yes
Satellite navigationGLONASS, GALILEO, BDS, QZSSGLONASS, GALILEO, BDS, QZSS
Features
Stereo speakersYesYes
3.5 mm headphone jackNoNo
Loudspeaker loudness—-23.4 LUFS
Fingerprint sensorSideUnder display
SensorsFingerprint (side-mounted), accelerometer, proximity, compassFingerprint (under display, optical), accelerometer, gyro, compass
Software
OS at launchAndroid 16Android 15
PlatformAndroidAndroid
InterfaceOriginOS 6HyperOS 2
Major OS updates promised—4
EU label
Energy class—B
Battery charge cycles—1,000
Endurance per cycle—50 h
Repairability class—C
Drop resistance class—A
To compare: 0up to 4 models
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