Vivo iQOO Z9x vs Vivo X300 Ultra
The Vivo iQOO Z9x (2024) runs on the Qualcomm Snapdragon 6 Gen 1, while the Vivo X300 Ultra (2026) runs on the Qualcomm Snapdragon 8 Elite Gen 5. By overall MobileRank rating, the Vivo X300 Ultra leads — 91/100 vs 49/100 (a 42-point difference). Key differences: the Vivo X300 Ultra has the bigger battery (7000 mAh vs 6000); the main camera is 50 MP vs 200 MP; the Vivo X300 Ultra is faster in AnTuTu (4,247,433 vs 737,054); the Vivo X300 Ultra has NFC for contactless payments, the Vivo iQOO Z9x doesn't; the Vivo iQOO Z9x is noticeably lighter (199g vs 230g).
Profile comparison
Category scores
Vivo iQOO Z9x
Vivo X300 Ultra
What makes Vivo iQOO Z9x better?
- Lighter: 199g vs 230g
- Better portability (60/100 vs 39/100)
What makes Vivo X300 Ultra better?
- Higher AnTuTu: 4247433 vs 737054
- Better Geekbench Single: 3639 vs 930
- Better Geekbench Multi: 11047 vs 2700
- Bigger battery: 7000 vs 6000 mAh
- Faster charging: 100W vs 44W
- Better main camera: 200MP vs 50MP
- Higher performance (99/100 vs 52/100)
- Better camera (96/100 vs 30/100)
- Longer battery life (85/100 vs 56/100)
- Better display (89/100 vs 66/100)
Comparison verdict
Comparing the Vivo iQOO Z9x vs the Vivo X300 Ultra, the Vivo X300 Ultra scores 42 points higher (91/100 vs 49/100). In the "performance" category, the Vivo X300 Ultra leads (99/100 vs 52/100). In the "camera" category, the Vivo X300 Ultra leads (96/100 vs 30/100). In the "battery" category, the Vivo X300 Ultra leads (85/100 vs 56/100). In the "performance" category, the Vivo X300 Ultra significantly outperforms the Vivo iQOO Z9x (99/100 vs 52/100). In the "display" category, the Vivo X300 Ultra notably outperforms the Vivo iQOO Z9x (89/100 vs 66/100). In the "camera" category, the Vivo X300 Ultra significantly outperforms the Vivo iQOO Z9x (96/100 vs 30/100). In the "battery" category, the Vivo X300 Ultra notably outperforms the Vivo iQOO Z9x (85/100 vs 56/100). In the "portability" category, the Vivo iQOO Z9x notably outperforms the Vivo X300 Ultra (60/100 vs 39/100).
Specs comparison
| Specification | Vivo iQOO Z9x | Vivo X300 Ultra | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 6 Gen 1 | Qualcomm Snapdragon 8 Elite Gen 5 | |
| AnTuTu | 737054 | 4247433 | |
| Geekbench Single | 930 | 3639 | |
| Geekbench Multi | 2700 | 11047 | |
| Display | 6.7" IPS LCD | 6.8" LTPO OLED | |
| Resolution | 1080x2408 | 3168x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 6000 mAh | 7000 mAh | |
| Charging | 44W | 100W | |
| Wireless charging | 0W | 40W | |
| DXOMark (camera) | — | 170 | |
| Main camera | 50 MP | 200 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 200 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 8GB / 12GB | 12GB / 16GB | |
| Storage | 128GB / 256GB | 256GB / 512GB / 1TB | |
| OS | Android 14, OriginOS 4 | Android 16 | |
| Brightness (peak) | 1000 nits | — | |
| NFC | no | yes | |
| Protection | IP64 | IP69 | |
| Dimensions | 165.7×76.0×8.0 mm | 163.0×76.8×8.2 mm | |
| Weight | 199 g | 230 g | |
| Launch price | — | $950 |
Camera comparison
Vivo iQOO Z9x
- Main: 50MP f/1.8
- Front: 8MP
Vivo X300 Ultra
- Main: 200MP f/1.6
- Ultrawide: 50MP
- Telephoto: 200MP
- Front: 32MP
Display comparison
Vivo iQOO Z9x
- 6.7" IPS LCD
- Resolution: 1080x2408
- Refresh rate: 120 Hz
Vivo X300 Ultra
- 6.8" LTPO OLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Battery and charging
Vivo iQOO Z9x
- 6000 mAh
- Wired: 44W
- No wireless charging
Vivo X300 Ultra
- 7000 mAh
- NanoReview test: web browsing 10:18 hrs, total 29:11 hrs
- Wired: 100W
- Wireless: 40W
Overall performance score
We compared Vivo iQOO Z9x and Vivo X300 Ultra, covering their specs and all relevant benchmarks.
Vivo X300 Ultra leads Vivo iQOO Z9x by 82.6% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Vivo iQOO Z9x
Price unknownDetailed category analysis
performance
In the "performance" category, the Vivo X300 Ultra significantly outperforms the Vivo iQOO Z9x (99/100 vs 52/100).
display
In the "display" category, the Vivo X300 Ultra notably outperforms the Vivo iQOO Z9x (89/100 vs 66/100).
camera
In the "camera" category, the Vivo X300 Ultra significantly outperforms the Vivo iQOO Z9x (96/100 vs 30/100).
battery
In the "battery" category, the Vivo X300 Ultra notably outperforms the Vivo iQOO Z9x (85/100 vs 56/100).
portability
In the "portability" category, the Vivo iQOO Z9x notably outperforms the Vivo X300 Ultra (60/100 vs 39/100).
Frequently asked questions
Which is better: the Vivo iQOO Z9x or the Vivo X300 Ultra?
The Vivo X300 Ultra significantly outperforms the Vivo iQOO Z9x by 42 points (91/100 vs 49/100).
What is the rating of the Vivo iQOO Z9x and the Vivo X300 Ultra?
The Vivo iQOO Z9x has a MobileRank rating of 49/100, the Vivo X300 Ultra — 91/100.
Which has the better camera: the Vivo iQOO Z9x or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on camera score (96/100 vs 30/100).
Which is more powerful: the Vivo iQOO Z9x or the Vivo X300 Ultra?
The Vivo X300 Ultra leads on performance (99/100 vs 52/100).
Should you choose the Vivo iQOO Z9x over the Vivo X300 Ultra?
The Vivo X300 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.