Realme C100x vs Redmi K70 Ultra
Comparing the Realme C100x (2026) and the Redmi K70 Ultra (2024) on specs and benchmarks. By overall MobileRank rating, the Redmi K70 Ultra leads — 54/100 vs 31/100 (a 23-point difference). Key differences: the Realme C100x has the bigger battery (7500 mAh vs 5500).
Realme C100x
Redmi K70 Ultra
- Bigger battery: 7500 vs 5500 mAh
- Better design/ergonomics (50/100 vs 33/100)
- Higher refresh rate: 144Hz vs 120Hz
- Higher performance (46/100 vs 0/100)
- Better camera (32/100 vs 24/100)
- Longer battery life (68/100 vs 52/100)
- Better value for money (84/100 vs 55/100)
Comparing the Realme C100x vs the Redmi K70 Ultra, the Redmi K70 Ultra scores 23 points higher (54/100 vs 31/100). In the "performance" category, the Redmi K70 Ultra leads (46/100 vs 0/100). In the "battery" category, the Redmi K70 Ultra leads (68/100 vs 52/100). In the "value for money" category, the Redmi K70 Ultra leads (84/100 vs 55/100). In the "performance" category, the Redmi K70 Ultra significantly outperforms the Realme C100x (46/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the Redmi K70 Ultra is a bit better (32/100 vs 24/100). In the "battery" category, the Redmi K70 Ultra notably outperforms the Realme C100x (68/100 vs 52/100). In the "design" category, the Realme C100x notably outperforms the Redmi K70 Ultra (50/100 vs 33/100). In the "value for money" category, the Redmi K70 Ultra notably outperforms the Realme C100x (84/100 vs 55/100).
| Specification | Realme C100x | Redmi K70 Ultra | |
|---|---|---|---|
| Processor | — | MediaTek Dimensity 9300+ | |
| AnTuTu | — | 2384849 | |
| Geekbench Single | — | 2250 | |
| Geekbench Multi | — | 7315 | |
| Display | 6.8" IPS LCD | 6.7" OLED | |
| Resolution | 720x1640 | 1220x2712 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 7500 mAh | 5500 mAh | |
| Charging | — | 120W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 8 MP | |
| Front camera | 5 MP | 20 MP | |
| RAM | 4GB | 12GB / 16GB / 24GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 14 | |
| Brightness (peak) | — | 4000 nits | |
| NFC | yes | yes | |
| Protection | IP64 | IP68 | |
| Dimensions | — | 160.4×75.1×8.4 mm | |
| Weight | — | 213 g | |
| Price | — | $375 |
Realme C100x
- Main: 50MP f/f/1.8
- Front: 5MP
Redmi K70 Ultra
- Main: 50MP f/f/1.7
- Ultrawide: 8MP
- Front: 20MP
Realme C100x
- 6.8" IPS LCD
- Resolution: 720x1640
- Refresh rate: 120 Hz
Redmi K70 Ultra
- 6.7" OLED
- Resolution: 1220x2712
- Refresh rate: 144 Hz
Realme C100x
- 7500 mAh
- No wireless charging
Redmi K70 Ultra
- 5500 mAh
- Wired: 120W
- No wireless charging
Realme C100x
Price unknownperformance
In the "performance" category, the Redmi K70 Ultra significantly outperforms the Realme C100x (46/100 vs 0/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the Redmi K70 Ultra is a bit better (32/100 vs 24/100).
battery
In the "battery" category, the Redmi K70 Ultra notably outperforms the Realme C100x (68/100 vs 52/100).
design
In the "design" category, the Realme C100x notably outperforms the Redmi K70 Ultra (50/100 vs 33/100).
value for money
In the "value for money" category, the Redmi K70 Ultra notably outperforms the Realme C100x (84/100 vs 55/100).
Which is better: the Realme C100x or the Redmi K70 Ultra?
The Redmi K70 Ultra significantly outperforms the Realme C100x by 23 points (54/100 vs 31/100).
What is the rating of the Realme C100x and the Redmi K70 Ultra?
The Realme C100x has a MobileRank rating of 31/100, the Redmi K70 Ultra — 54/100.
Which has the better camera: the Realme C100x or the Redmi K70 Ultra?
The Redmi K70 Ultra leads on camera score (32/100 vs 24/100).
Which is more powerful: the Realme C100x or the Redmi K70 Ultra?
The Redmi K70 Ultra leads on performance (46/100 vs 0/100).
Should you choose the Realme C100x over the Redmi K70 Ultra?
The Realme C100x is a better fit for everyday use. The Redmi K70 Ultra is a better fit for budget-conscious buyers.