Category Breakdown
Camera
≈ Tie
Main sensor resolution
≈ TieBattery
F21 Pro
Battery capacity (4,500 mAh)
WinsCharging
K9
Wired charging speed (65W)
WinsPerformance
F21 Pro
AnTuTu benchmark (289,250 pts)
WinsDisplay
≈ Tie
Screen size
≈ TieWeight
K9
Total weight (172g)
WinsValue
≈ Tie
Specs-per-dollar (server score)
≈ TieFull Spec Comparison
| Spec | F21 Pro | K9 |
|---|---|---|
Display | ||
| 6.43" | 6.43" | |
| 1,080 × 2,400 | 1,080 × 2,400 | |
| AMOLED | Super AMOLED | |
| 90Hz | 90Hz | |
| 800 nits | 750 nits | |
Camera | ||
| 64 MP | 64 MP | |
| Triple | Triple | |
| No | No | |
| Fingerprint (under display, Fingerprint (under display, optical), accelerometer, compass, gyro, optical), proximity | Fingerprint (under display, Fingerprint (under display, optical), accelerometer, compass, gyro, optical), proximity | |
Performance | ||
| Qualcomm SM6225 Snapdragon 680 4G (6 nm) | Qualcomm SM7250-AC Snapdragon 768G 5G (7 nm) | |
| 289,250 | — | |
| 8 GB | 8 GB | |
| 128 GB | 256 GB | |
Battery | ||
| 4,500 mAh | 4,300 mAh | |
| 33W | 65W | |
| No | No | |
Build | ||
| 175g | 172g | |
| 7.5mm | 7.9mm | |
| glass front, plastic frame | glass front, plastic frame, plastic back | |
| none | none | |
| Mid-Range | Mid-Range | |
Who Each Phone Is Really For
If your priorities differ from the verdict above, start here.
Best overall value
Oppo F21 Pro
Highest value score — most specs per dollar.
Budget pick
Oppo K9
Lowest price while still competitive.
Photography
Oppo K9
Highest resolution main camera.