Realme Narzo 100x vs Vivo iQOO 15 Ultra
The Realme Narzo 100x (2026) runs on the MediaTek Dimensity 6300, while the Vivo iQOO 15 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5; launch prices were $205 and $799. By overall MobileRank rating, the Vivo iQOO 15 Ultra leads — 89/100 vs 46/100 (a 43-point difference). Key differences: the Realme Narzo 100x has the bigger battery (8000 mAh vs 7400); the Vivo iQOO 15 Ultra is faster in AnTuTu (4,602,290 vs 524,785); the Vivo iQOO 15 Ultra has NFC for contactless payments, the Realme Narzo 100x doesn't.
Realme Narzo 100x
Vivo iQOO 15 Ultra
- Bigger battery: 8000 vs 7400 mAh
- Lighter: 224g vs 227g
- Cheaper at launch: $205 vs $799
- Better portability (36/100 vs 35/100)
- Higher AnTuTu: 4602290 vs 524785
- Better Geekbench Single: 3640 vs 771
- Better Geekbench Multi: 11033 vs 1980
- Faster charging: 120W vs 45W
- Higher performance (99/100 vs 43/100)
- Better camera (78/100 vs 30/100)
- Longer battery life (92/100 vs 64/100)
- Better display (99/100 vs 65/100)
Comparing the Realme Narzo 100x vs the Vivo iQOO 15 Ultra, the Vivo iQOO 15 Ultra scores 43 points higher (89/100 vs 46/100). In the "performance" category, the Vivo iQOO 15 Ultra leads (99/100 vs 43/100). In the "camera" category, the Vivo iQOO 15 Ultra leads (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 Ultra leads (92/100 vs 64/100). Value score: Realme Narzo 100x — 54/100, Vivo iQOO 15 Ultra — 90/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme Narzo 100x (99/100 vs 43/100). In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme Narzo 100x (99/100 vs 65/100). In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme Narzo 100x (78/100 vs 30/100). In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Realme Narzo 100x (92/100 vs 64/100). In the "portability" category, the Realme Narzo 100x and the Vivo iQOO 15 Ultra are nearly equal (36/100 vs 35/100).
| Specification | Realme Narzo 100x | Vivo iQOO 15 Ultra | |
|---|---|---|---|
| Processor | MediaTek Dimensity 6300 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 524785 | 4602290 | |
| Geekbench Single | 771 | 3640 | |
| Geekbench Multi | 1980 | 11033 | |
| Display | 6.8" IPS LCD | 6.8" LTPO AMOLED | |
| Resolution | 720x1570 | 1440x3168 | |
| Refresh rate | 144 Hz | 144 Hz | |
| Battery | 8000 mAh | 7400 mAh | |
| Charging | 45W | 120W | |
| Wireless charging | 0W | 50W | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 4GB / 6GB | 12GB / 16GB / 24GB | |
| Storage | 64GB / 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 1200 nits | 8000 nits | |
| NFC | no | yes | |
| Protection | IP65 | IP68 | |
| Dimensions | 166.4×78.2×8.8 mm | 163.7×76.8×8.7 mm | |
| Weight | 224 g | 227 g | |
| Launch price | $205 | $799 |
Realme Narzo 100x
- Main: 50MP f/f/1.8
- Front: 8MP
Vivo iQOO 15 Ultra
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Realme Narzo 100x
- 6.8" IPS LCD
- Resolution: 720x1570
- Refresh rate: 144 Hz
Vivo iQOO 15 Ultra
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Realme Narzo 100x
- 8000 mAh
- Wired: 45W
- No wireless charging
Vivo iQOO 15 Ultra
- 7400 mAh
- Wired: 120W
- Wireless: 50W
We compared Realme Narzo 100x and Vivo iQOO 15 Ultra, covering their specs and all relevant benchmarks.
Vivo iQOO 15 Ultra leads Realme Narzo 100x by 88.6% in our overall performance rating.
Launch price difference: $594. Realme Narzo 100x was $594 cheaper at launch.
performance
In the "performance" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme Narzo 100x (99/100 vs 43/100).
display
In the "display" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme Narzo 100x (99/100 vs 65/100).
camera
In the "camera" category, the Vivo iQOO 15 Ultra significantly outperforms the Realme Narzo 100x (78/100 vs 30/100).
battery
In the "battery" category, the Vivo iQOO 15 Ultra notably outperforms the Realme Narzo 100x (92/100 vs 64/100).
portability
In the "portability" category, the Realme Narzo 100x and the Vivo iQOO 15 Ultra are nearly equal (36/100 vs 35/100).
Which is better: the Realme Narzo 100x or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra significantly outperforms the Realme Narzo 100x by 43 points (89/100 vs 46/100).
What is the rating of the Realme Narzo 100x and the Vivo iQOO 15 Ultra?
The Realme Narzo 100x has a MobileRank rating of 46/100, the Vivo iQOO 15 Ultra — 89/100.
Which has the better camera: the Realme Narzo 100x or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on camera score (78/100 vs 30/100).
Which is more powerful: the Realme Narzo 100x or the Vivo iQOO 15 Ultra?
The Vivo iQOO 15 Ultra leads on performance (99/100 vs 43/100).
Should you choose the Realme Narzo 100x over the Vivo iQOO 15 Ultra?
The Realme Narzo 100x is a better fit for everyday use. The Vivo iQOO 15 Ultra is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.