Vivo iQOO 15 vs Vivo X300 E
The Vivo iQOO 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Vivo X300 E (2026) runs on the Qualcomm Snapdragon 8 Gen 5; estimated prices are $599 and $651. By overall MobileRank rating, the Vivo iQOO 15 leads — 86/100 vs 81/100 (a 5-point difference). Key differences: the Vivo X300 E has the bigger battery (7200 mAh vs 7000); the Vivo iQOO 15 is faster in AnTuTu (3,740,528 vs 3,068,952); the Vivo X300 E is noticeably lighter (200g vs 215g).
Vivo iQOO 15
Vivo X300 E
- Higher AnTuTu: 3740528 vs 3068952
- Better Geekbench Single: 3041 vs 2903
- Faster charging: 100W vs 90W
- Cheaper: $599 vs $651
- Higher performance (94/100 vs 91/100)
- Better camera (78/100 vs 64/100)
- Longer battery life (85/100 vs 83/100)
- Better display (99/100 vs 94/100)
- Better Geekbench Multi: 9602 vs 9494
- Bigger battery: 7200 vs 7000 mAh
- Lighter: 200g vs 215g
- Better portability (61/100 vs 48/100)
Comparing the Vivo iQOO 15 vs the Vivo X300 E, the Vivo iQOO 15 scores 5 points higher (86/100 vs 81/100). In the "camera" category, the Vivo iQOO 15 leads (78/100 vs 64/100). In the "performance" category, the Vivo iQOO 15 and the Vivo X300 E are nearly equal (94/100 vs 91/100). In the "display" category, the Vivo iQOO 15 is a bit better (99/100 vs 94/100). In the "camera" category, the Vivo iQOO 15 is a bit better (78/100 vs 64/100). In the "battery" category, the Vivo iQOO 15 and the Vivo X300 E are nearly equal (85/100 vs 83/100). In the "portability" category, the Vivo X300 E is a bit better (61/100 vs 48/100).
| Specification | Vivo iQOO 15 | Vivo X300 E | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Qualcomm Snapdragon 8 Gen 5 | |
| AnTuTu | 3740528 | 3068952 | |
| Geekbench Single | 3041 | 2903 | |
| Geekbench Multi | 9494 | 9602 | |
| Display | 6.8" LTPO AMOLED | 6.6" AMOLED | |
| Resolution | 1440x3168 | 1260x2750 | |
| Refresh rate | 144 Hz | 144 Hz | |
| Battery | 7000 mAh | 7200 mAh | |
| Charging | 100W | 90W | |
| Wireless charging | 40W | — | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 8 MP | |
| Telephoto | 50 MP | 50 MP | |
| Front camera | 32 MP | 50 MP | |
| RAM | 12GB / 16GB | 12GB | |
| Storage | 256GB / 512GB / 1TB | 256GB / 512GB | |
| OS | Android 16 | Android 16 | |
| Brightness (peak) | 6000 nits | 5000 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68/IP69 | |
| Dimensions | 163.7×76.8×8.1 mm | 157.5×74.3×7.8 mm | |
| Weight | 215 g | 200 g | |
| Price | $599 | $651 |
Vivo iQOO 15
- Main: 50MP f/f/1.9
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Vivo X300 E
- Main: 50MP f/f/1.9
- Ultrawide: 8MP
- Telephoto: 50MP
- Front: 50MP
Vivo iQOO 15
- 6.8" LTPO AMOLED
- Resolution: 1440x3168
- Refresh rate: 144 Hz
Vivo X300 E
- 6.6" AMOLED
- Resolution: 1260x2750
- Refresh rate: 144 Hz
Vivo iQOO 15
- 7000 mAh
- NanoReview test: web browsing 18:52 hrs, total 39:26 hrs
- Wired: 100W
- Wireless: 40W
Vivo X300 E
- 7200 mAh
- Wired: 90W
- Wireless charging: no data
We compared Vivo iQOO 15 and Vivo X300 E, covering their specs and all relevant benchmarks.
Vivo iQOO 15 leads Vivo X300 E by 21.9% in our overall performance rating.
Price difference: $52. Vivo iQOO 15 is cheaper by $52.
performance
In the "performance" category, the Vivo iQOO 15 and the Vivo X300 E are nearly equal (94/100 vs 91/100).
display
In the "display" category, the Vivo iQOO 15 is a bit better (99/100 vs 94/100).
camera
In the "camera" category, the Vivo iQOO 15 is a bit better (78/100 vs 64/100).
battery
In the "battery" category, the Vivo iQOO 15 and the Vivo X300 E are nearly equal (85/100 vs 83/100).
portability
In the "portability" category, the Vivo X300 E is a bit better (61/100 vs 48/100).
Which is better: the Vivo iQOO 15 or the Vivo X300 E?
The Vivo iQOO 15 edges out the Vivo X300 E by just 5 points — the two devices are very close in overall level.
What is the rating of the Vivo iQOO 15 and the Vivo X300 E?
The Vivo iQOO 15 has a MobileRank rating of 86/100, the Vivo X300 E — 81/100.
Which has the better camera: the Vivo iQOO 15 or the Vivo X300 E?
The Vivo iQOO 15 leads on camera score (78/100 vs 64/100).
Should you choose the Vivo iQOO 15 over the Vivo X300 E?
The Vivo iQOO 15 is a better fit for gamers and power users, those who care about battery life. The Vivo X300 E is a better fit for gamers and power users, those who care about battery life.