Nubia NaviX Ultra vs Redmi K40S
The Nubia NaviX Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Redmi K40S (2022) runs on the Qualcomm Snapdragon 870 5G. By overall MobileRank rating, the Nubia NaviX Ultra leads — 92/100 vs 54/100 (a 38-point difference). Key differences: the Nubia NaviX Ultra has the bigger battery (7100 mAh vs 4500); the main camera is 200 MP vs 48 MP; the Nubia NaviX Ultra is faster in AnTuTu (3,950,082 vs 1,010,069).
Profile comparison
Category scores
Nubia NaviX Ultra
Redmi K40S
What makes Nubia NaviX Ultra better?
- Higher AnTuTu: 3950082 vs 1010069
- Better Geekbench Single: 3639 vs 1298
- Better Geekbench Multi: 11047 vs 3520
- Bigger battery: 7100 vs 4500 mAh
- Faster charging: 90W vs 67W
- Better main camera: 200MP vs 48MP
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (98/100 vs 61/100)
- Better camera (96/100 vs 36/100)
- Longer battery life (85/100 vs 42/100)
- Better display (94/100 vs 79/100)
What makes Redmi K40S better?
- Lighter: 195g vs 208g
- Better portability (65/100 vs 59/100)
Comparison verdict
Comparing the Nubia NaviX Ultra vs the Redmi K40S, the Nubia NaviX Ultra scores 38 points higher (92/100 vs 54/100). In the "performance" category, the Nubia NaviX Ultra leads (98/100 vs 61/100). In the "camera" category, the Nubia NaviX Ultra leads (96/100 vs 36/100). In the "battery" category, the Nubia NaviX Ultra leads (85/100 vs 42/100). In the "performance" category, the Nubia NaviX Ultra significantly outperforms the Redmi K40S (98/100 vs 61/100). In the "display" category, the Nubia NaviX Ultra notably outperforms the Redmi K40S (94/100 vs 79/100). In the "camera" category, the Nubia NaviX Ultra significantly outperforms the Redmi K40S (96/100 vs 36/100). In the "battery" category, the Nubia NaviX Ultra significantly outperforms the Redmi K40S (85/100 vs 42/100). In the "portability" category, the Redmi K40S is a bit better (65/100 vs 59/100).
Specs comparison
| Specification | Nubia NaviX Ultra | Redmi K40S | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Qualcomm Snapdragon 870 5G | |
| AnTuTu | 3950082 | 1010069 | |
| Geekbench Single | 3639 | 1298 | |
| Geekbench Multi | 11047 | 3520 | |
| Display | 6.8" LTPO OLED | 6.7" AMOLED | |
| Resolution | 1260x2800 | 1080x2400 | |
| Refresh rate | 144 Hz | 120 Hz | |
| Battery | 7100 mAh | 4500 mAh | |
| Charging | 90W | 67W | |
| Wireless charging | 50W | 0W | |
| Main camera | 200 MP | 48 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 64 MP | 0 MP | |
| Front camera | 32 MP | 20 MP | |
| RAM | 12GB / 16GB | 6GB / 8GB / 12GB | |
| Storage | 512GB / 1TB | 128GB / 256GB | |
| OS | Android 16 | Android 12, MIUI 13 | |
| Brightness (peak) | 4500 nits | 1300 nits | |
| NFC | yes | yes | |
| Dimensions | 162.1×75.7×7.6 mm | 163.2×76.0×7.7 mm | |
| Weight | 208 g | 195 g | |
| Launch price | $845 | — |
Camera comparison
Nubia NaviX Ultra
- Main: 200MP f/1.6
- Ultrawide: 50MP
- Telephoto: 64MP
- Front: 32MP
Redmi K40S
- Main: 48MP f/1.8
- Ultrawide: 8MP
- Front: 20MP
Display comparison
Nubia NaviX Ultra
- 6.8" LTPO OLED
- Resolution: 1260x2800
- Refresh rate: 144 Hz
Redmi K40S
- 6.7" AMOLED
- Resolution: 1080x2400
- Refresh rate: 120 Hz
Battery and charging
Nubia NaviX Ultra
- 7100 mAh
- Wired: 90W
- Wireless: 50W
Redmi K40S
- 4500 mAh
- Wired: 67W
- No wireless charging
Overall performance score
We compared Nubia NaviX Ultra and Redmi K40S, covering their specs and all relevant benchmarks.
Nubia NaviX Ultra leads Redmi K40S by 291.1% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Redmi K40S
Price unknownDetailed category analysis
performance
In the "performance" category, the Nubia NaviX Ultra significantly outperforms the Redmi K40S (98/100 vs 61/100).
display
In the "display" category, the Nubia NaviX Ultra notably outperforms the Redmi K40S (94/100 vs 79/100).
camera
In the "camera" category, the Nubia NaviX Ultra significantly outperforms the Redmi K40S (96/100 vs 36/100).
battery
In the "battery" category, the Nubia NaviX Ultra significantly outperforms the Redmi K40S (85/100 vs 42/100).
portability
In the "portability" category, the Redmi K40S is a bit better (65/100 vs 59/100).
Frequently asked questions
Which is better: the Nubia NaviX Ultra or the Redmi K40S?
The Nubia NaviX Ultra significantly outperforms the Redmi K40S by 38 points (92/100 vs 54/100).
What is the rating of the Nubia NaviX Ultra and the Redmi K40S?
The Nubia NaviX Ultra has a MobileRank rating of 92/100, the Redmi K40S — 54/100.
Which has the better camera: the Nubia NaviX Ultra or the Redmi K40S?
The Nubia NaviX Ultra leads on camera score (96/100 vs 36/100).
Which is more powerful: the Nubia NaviX Ultra or the Redmi K40S?
The Nubia NaviX Ultra leads on performance (98/100 vs 61/100).
Should you choose the Nubia NaviX Ultra over the Redmi K40S?
The Nubia NaviX Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers. The Redmi K40S is a better fit for active users.