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TCL K70 5G vs Vivo Y31d

What K70 5G does better (5) and where Y31d wins (6) — every spec side by side.

TCL K70 5G
TCL · 2026K70 5G
6.7Score
5 advantages≈ $170
vs
Vivo Y31d
Vivo · 2026Y31d
7.5Score
6 advantages≈ $180
Higher score
5.8Display6.6
4.6Camera4.6
7.7Battery8.7
4.6Features6.3
Dimensions

Size comparison

K70 5GY31d
79.5 × 1688.378.4 × 166.68.4
K70 5GY31dDifference
Height168 mm166.6 mm+1.4 mm
Width79.5 mm78.4 mm+1.1 mm
Thickness8.3 mm8.4 mm−0.1 mm
Weight197 g219 g−22 g

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

Why is K70 5G better than Y31d?

  1. NFCYes · Y31d: No
  2. Memory card slotYes · Y31d: No
  3. Rear cameras2 vs 12×
  4. Weight197 g vs 219 g+11%
  5. Main camera aperturef/1.8 vs f/2+11%

Why is Y31d better than K70 5G?

  1. RAM4 GB vs 8 GB2×
  2. Battery capacity5,200 mAh vs 7,200 mAh+38%
  3. Water resistance (IPx)IPx4 vs IPx82×
  4. Storage (max)128 GB vs 256 GB2×
  5. Peak brightness750 nits vs 1,250 nits+67%
  6. CPU frequency2.2 GHz vs 2.9 GHz+32%
Specifications

Side by side

TCL K70 5GTCL K70 5G≈ $1706.7
Vivo Y31dVivo Y31d≈ $1807.5
Design
Weight197 g219 g
Thickness8.3 mm8.4 mm
Height168 mm166.6 mm
Width79.5 mm78.4 mm
Frame—Plastic
Back—Plastic
Ingress protectionIP64IP68
Water resistance (IPx)IPx4IPx8
Glass protectionGorilla Glass 3—
ColoursMidnight Black, Stardust BlueGlow White, Starlight Grey
Display
Screen size6.8″6.8″
PanelLCDIPS LCD
OLED panelNoNo
Resolution (width)720 px720 px
Resolution (height)1,570 px1,570 px
Pixel density256 ppi256 ppi
Refresh rate120 Hz120 Hz
Peak brightness750 nits1,250 nits
Screen-to-body ratio84%85.3%
Performance
ChipsetQualcomm Snapdragon 4 Gen 2Qualcomm SM6225-AF Snapdragon 6s 4G Gen 2
Chip makerQualcommQualcomm
Process—6 nm
CPU cores88
CPU frequency2.2 GHz2.9 GHz
GPUAdreno 613Adreno
Memory
RAM4 GB8 GB
Storage (max)128 GB256 GB
Storage (base)128 GB128 GB
Storage type—UFS 2.2
Memory card slotYesNo
Camera
Main camera50 MP50 MP
Main camera aperturef/1.8f/2
Rear cameras21
Optical stabilisationNoNo
Ultra-wide cameraNoNo
Telephoto cameraNoNo
Max video1080p1080p
Selfie camera8 MP8 MP
4K selfie videoNoNo
Battery
Battery capacity5,200 mAh7,200 mAh
Battery type—Si/C
Wired charging—44 W
Charged in 30 min—35%
Wireless chargingNoNo
Connectivity
5GNo—
eSIMNoNo
Dual SIMYesYes
Wi-Fi standardWi-Fi 5Wi-Fi 5
Bluetooth55.1
NFCYesNo
USB—USB Type-C 2.0
USB version22
Satellite navigationGPS, GLONASS, GALILEOGLONASS, GALILEO, BDS, QZSS
Features
Stereo speakers—Yes
3.5 mm headphone jack—No
Fingerprint sensorSideSide
Sensorsproximity, accelerometer, fingerprintFingerprint (side-mounted), accelerometer, gyro, proximity, compass
Software
OS at launchAndroid 16Android 16
PlatformAndroidAndroid
Interface—OriginOS 6
EU label
Energy classA—
Battery charge cycles1,000—
Endurance per cycle58 h—
Repairability classB—
Drop resistance classA—
To compare: 0up to 4 models
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