Category Breakdown
Camera
≈ Tie
Main sensor resolution
≈ TieBattery
Y31d
Battery capacity (7,200 mAh)
WinsCharging
K13
Wired charging speed (80W)
WinsPerformance
—
AnTuTu benchmark
—Display
Y31d
Screen size (6.75")
WinsWeight
K13
Total weight (208g)
WinsValue
K13
Specs-per-dollar (server score) (9.8/10)
WinsFull Spec Comparison
| Spec | K13 | Y31d |
|---|---|---|
Display | ||
| 6.67" | 6.75" | |
| 1,080 × 2,400 | 720 × 1,570 | |
| AMOLED | IPS LCD | |
| 120Hz | 120Hz | |
| 1,200 nits | 1,250 nits | |
Camera | ||
| 50 MP | 50 MP | |
| Dual | Dual | |
| No | No | |
| Fingerprint (under display, Fingerprint (under display, optical), accelerometer, compass, gyro, optical), proximity | Fingerprint (side-mounted), accelerometer, compass, gyro, proximity | |
Performance | ||
| Qualcomm Snapdragon 6 Gen 4 | Qualcomm Snapdragon 6s 4G Gen 2 | |
| 12 GB | 8 GB | |
| 512 GB | 256 GB | |
Battery | ||
| 7,000 mAh | 7,200 mAh | |
| 80W | 44W | |
| No | No | |
Build | ||
| 208g | 219g | |
| 8.5mm | 8.4mm | |
| Glass front, plastic frame and back | Glass front, plastic frame, plastic back | |
| IP65 | No certified water resistance | |
| Budget | Budget | |
Who Each Phone Is Really For
If your priorities differ from the verdict above, start here.
Best overall value
Oppo K13
Highest value score — most specs per dollar.
Budget pick
vivo Y31d
Lowest price while still competitive.
Photography
vivo Y31d
Highest resolution main camera.