OnePlus Ace 6T vs Redmi K40
The OnePlus Ace 6T (2025) runs on the Qualcomm Snapdragon 8 Gen 5, while the Redmi K40 (2021) runs on the Qualcomm Snapdragon 870; launch prices were $320 and $309. By overall MobileRank rating, the OnePlus Ace 6T leads — 72/100 vs 54/100 (a 18-point difference). Key differences: the OnePlus Ace 6T has the bigger battery (8300 mAh vs 4520); the main camera is 50 MP vs 48 MP; the OnePlus Ace 6T is faster in AnTuTu (2,810,314 vs 1,010,069); the Redmi K40 is noticeably lighter (196g vs 211g).
OnePlus Ace 6T
Redmi K40
- Higher AnTuTu: 2810314 vs 1010069
- Better Geekbench Single: 2903 vs 1298
- Better Geekbench Multi: 9602 vs 3520
- Bigger battery: 8300 vs 4520 mAh
- Faster charging: 100W vs 33W
- Better main camera: 50MP vs 48MP
- Higher refresh rate: 165Hz vs 120Hz
- Higher performance (90/100 vs 61/100)
- Longer battery life (77/100 vs 42/100)
- Better display (94/100 vs 79/100)
- Lighter: 196g vs 211g
- Cheaper at launch: $309 vs $320
- Better camera (36/100 vs 35/100)
- Better portability (64/100 vs 51/100)
Comparing the OnePlus Ace 6T vs the Redmi K40, the OnePlus Ace 6T scores 18 points higher (72/100 vs 54/100). In the "performance" category, the OnePlus Ace 6T leads (90/100 vs 61/100). In the "battery" category, the OnePlus Ace 6T leads (77/100 vs 42/100). Value score: OnePlus Ace 6T — 86/100, Redmi K40 — 50/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the OnePlus Ace 6T notably outperforms the Redmi K40 (90/100 vs 61/100). In the "display" category, the OnePlus Ace 6T notably outperforms the Redmi K40 (94/100 vs 79/100). In the "camera" category, the Redmi K40 and the OnePlus Ace 6T are nearly equal (36/100 vs 35/100). In the "battery" category, the OnePlus Ace 6T significantly outperforms the Redmi K40 (77/100 vs 42/100). In the "portability" category, the Redmi K40 is a bit better (64/100 vs 51/100).
| Specification | OnePlus Ace 6T | Redmi K40 | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Gen 5 | Qualcomm Snapdragon 870 | |
| AnTuTu | 2810314 | 1010069 | |
| Geekbench Single | 2903 | 1298 | |
| Geekbench Multi | 9602 | 3520 | |
| Display | 6.8" AMOLED | 6.7" AMOLED | |
| Resolution | 1272x2800 | 2400x1080 | |
| Refresh rate | 165 Hz | 120 Hz | |
| Battery | 8300 mAh | 4520 mAh | |
| Charging | 100W | 33W | |
| Main camera | 50 MP | 48 MP | |
| Ultrawide | 8 MP | 8 MP | |
| Front camera | 16 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB / 12GB | |
| Storage | 256GB / 512GB / 1TB | 128GB / 256GB | |
| OS | Android 16 | Android 11 | |
| Brightness (peak) | 3600 nits | — | |
| NFC | yes | — | |
| Protection | IP68 | — | |
| Dimensions | 163.4×77.0×8.1 mm | — | |
| Weight | 211 g | 196 g | |
| Launch price | $320 | $309 |
OnePlus Ace 6T
- Main: 50MP f/1.8
- Ultrawide: 8MP
- Front: 16MP
Redmi K40
- Main: 48MP f/1.79
- Ultrawide: 8MP
- Front: 20MP
OnePlus Ace 6T
- 6.8" AMOLED
- Resolution: 1272x2800
- Refresh rate: 165 Hz
Redmi K40
- 6.7" AMOLED
- Resolution: 2400x1080
- Refresh rate: 120 Hz
OnePlus Ace 6T
- 8300 mAh
- Wired: 100W
- No wireless charging
Redmi K40
- 4520 mAh
- Wired: 33W
- Wireless charging: no data
We compared OnePlus Ace 6T and Redmi K40, covering their specs and all relevant benchmarks.
OnePlus Ace 6T leads Redmi K40 by 178.2% in our overall performance rating.
Launch price difference: $11. Redmi K40 was $11 cheaper at launch.
performance
In the "performance" category, the OnePlus Ace 6T notably outperforms the Redmi K40 (90/100 vs 61/100).
display
In the "display" category, the OnePlus Ace 6T notably outperforms the Redmi K40 (94/100 vs 79/100).
camera
In the "camera" category, the Redmi K40 and the OnePlus Ace 6T are nearly equal (36/100 vs 35/100).
battery
In the "battery" category, the OnePlus Ace 6T significantly outperforms the Redmi K40 (77/100 vs 42/100).
portability
In the "portability" category, the Redmi K40 is a bit better (64/100 vs 51/100).
Which is better: the OnePlus Ace 6T or the Redmi K40?
The OnePlus Ace 6T is noticeably better than the Redmi K40 — the overall rating gap is 18 points.
What is the rating of the OnePlus Ace 6T and the Redmi K40?
The OnePlus Ace 6T has a MobileRank rating of 72/100, the Redmi K40 — 54/100.
Which is more powerful: the OnePlus Ace 6T or the Redmi K40?
The OnePlus Ace 6T leads on performance (90/100 vs 61/100).
Should you choose the OnePlus Ace 6T over the Redmi K40?
The OnePlus Ace 6T is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers. The Redmi K40 is a better fit for active users.