OnePlus 15T vs Oppo K12
The OnePlus 15T (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Oppo K12 (2024) runs on the Qualcomm Snapdragon 7 Gen 3. By overall MobileRank rating, the OnePlus 15T leads — 86/100 vs 57/100 (a 29-point difference). Key differences: the OnePlus 15T has the bigger battery (6400 mAh vs 5500); the OnePlus 15T is faster in AnTuTu (3,927,976 vs 1,027,925); the Oppo K12 is noticeably lighter (186g vs 206g).
Profile comparison
Category scores
OnePlus 15T
Oppo K12
What makes OnePlus 15T better?
- Higher AnTuTu: 3927976 vs 1027925
- Better Geekbench Single: 3639 vs 1131
- Better Geekbench Multi: 11047 vs 3111
- Bigger battery: 6400 vs 5500 mAh
- Higher performance (98/100 vs 59/100)
- Better camera (78/100 vs 35/100)
- Longer battery life (84/100 vs 66/100)
- Better display (89/100 vs 80/100)
What makes Oppo K12 better?
- Lighter: 186g vs 206g
- Better portability (63/100 vs 51/100)
Comparison verdict
Comparing the OnePlus 15T vs the Oppo K12, the OnePlus 15T scores 29 points higher (86/100 vs 57/100). In the "performance" category, the OnePlus 15T leads (98/100 vs 59/100). In the "camera" category, the OnePlus 15T leads (78/100 vs 35/100). In the "battery" category, the OnePlus 15T leads (84/100 vs 66/100). In the "performance" category, the OnePlus 15T significantly outperforms the Oppo K12 (98/100 vs 59/100). In the "display" category, the OnePlus 15T is a bit better (89/100 vs 80/100). In the "camera" category, the OnePlus 15T significantly outperforms the Oppo K12 (78/100 vs 35/100). In the "battery" category, the OnePlus 15T notably outperforms the Oppo K12 (84/100 vs 66/100). In the "portability" category, the Oppo K12 is a bit better (63/100 vs 51/100).
Specs comparison
| Specification | OnePlus 15T | Oppo K12 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 7 Gen 3 | |
| AnTuTu | 3927976 | 1027925 | |
| Geekbench Single | 3639 | 1131 | |
| Geekbench Multi | 11047 | 3111 | |
| Display | 6.8" LTPO AMOLED | 6.7" AMOLED | |
| Resolution | 3168x1440 | 1080x2412 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6400 mAh | 5500 mAh | |
| Charging | 100W | 100W | |
| Wireless charging | 50W | 0W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 16 MP | |
| RAM | 12GB / 16GB | 8GB / 12GB | |
| Storage | 256GB / 512GB | 256GB / 512GB | |
| OS | Android 16 | Android 14, ColorOS 14 | |
| Brightness (peak) | 3600 nits | 1100 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP54 | |
| Dimensions | 150.6×71.8×8.4 mm | 162.5×75.3×8.4 mm | |
| Weight | 206 g | 186 g | |
| Launch price | $799 | — |
Camera comparison
OnePlus 15T
- Main: 50MP f/1.6
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Oppo K12
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Display comparison
OnePlus 15T
- 6.8" LTPO AMOLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Oppo K12
- 6.7" AMOLED
- Resolution: 1080x2412
- Refresh rate: 120 Hz
Battery and charging
OnePlus 15T
- 6400 mAh
- Wired: 100W
- Wireless: 50W
Oppo K12
- 5500 mAh
- Wired: 100W
- No wireless charging
Overall performance score
We compared OnePlus 15T and Oppo K12, covering their specs and all relevant benchmarks.
OnePlus 15T leads Oppo K12 by 282.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Oppo K12
Price unknownDetailed category analysis
performance
In the "performance" category, the OnePlus 15T significantly outperforms the Oppo K12 (98/100 vs 59/100).
display
In the "display" category, the OnePlus 15T is a bit better (89/100 vs 80/100).
camera
In the "camera" category, the OnePlus 15T significantly outperforms the Oppo K12 (78/100 vs 35/100).
battery
In the "battery" category, the OnePlus 15T notably outperforms the Oppo K12 (84/100 vs 66/100).
portability
In the "portability" category, the Oppo K12 is a bit better (63/100 vs 51/100).
Frequently asked questions
Which is better: the OnePlus 15T or the Oppo K12?
The OnePlus 15T significantly outperforms the Oppo K12 by 29 points (86/100 vs 57/100).
What is the rating of the OnePlus 15T and the Oppo K12?
The OnePlus 15T has a MobileRank rating of 86/100, the Oppo K12 — 57/100.
Which has the better camera: the OnePlus 15T or the Oppo K12?
The OnePlus 15T leads on camera score (78/100 vs 35/100).
Which is more powerful: the OnePlus 15T or the Oppo K12?
The OnePlus 15T leads on performance (98/100 vs 59/100).
Should you choose the OnePlus 15T over the Oppo K12?
The OnePlus 15T is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.