OnePlus 15 vs Tecno Spark Slim
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite, while the Tecno Spark Slim (2025) runs on the Helio G200; estimated prices are $799 and $299. By overall MobileRank rating, the OnePlus 15 leads — 61/100 vs 34/100 (a 27-point difference). Key differences: the OnePlus 15 has the bigger battery (6500 mAh vs 5160); the OnePlus 15 is faster in AnTuTu (3,621,671 vs 450,000); the Tecno Spark Slim is noticeably lighter (156g vs 213g).
OnePlus 15
Tecno Spark Slim
- Higher AnTuTu: 3621671 vs 450000
- Better Geekbench Single: 3050 vs 750
- Better Geekbench Multi: 9300 vs 2100
- Bigger battery: 6500 vs 5160 mAh
- Higher performance (77/100 vs 0/100)
- Better camera (34/100 vs 26/100)
- Longer battery life (48/100 vs 46/100)
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 156g vs 213g
- Cheaper: $299 vs $799
- Better design/ergonomics (100/100 vs 33/100)
- Better value for money (89/100 vs 55/100)
Comparing the OnePlus 15 vs the Tecno Spark Slim, the OnePlus 15 scores 27 points higher (61/100 vs 34/100). In the "performance" category, the OnePlus 15 leads (77/100 vs 0/100). In the "value for money" category, the Tecno Spark Slim leads (89/100 vs 55/100). In the "performance" category, the OnePlus 15 significantly outperforms the Tecno Spark Slim (77/100 vs 0/100). In the "display" category, both devices are on the same level — 100/100. In the "camera" category, the OnePlus 15 is a bit better (34/100 vs 26/100). In the "battery" category, the OnePlus 15 and the Tecno Spark Slim are nearly equal (48/100 vs 46/100). In the "design" category, the Tecno Spark Slim significantly outperforms the OnePlus 15 (100/100 vs 33/100). In the "value for money" category, the Tecno Spark Slim significantly outperforms the OnePlus 15 (89/100 vs 55/100).
| Specification | OnePlus 15 | Tecno Spark Slim | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite | Helio G200 | |
| AnTuTu | 3621671 | 450000 | |
| Geekbench Single | 3050 | 750 | |
| Geekbench Multi | 9300 | 2100 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | — | 1224x2720 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 6500 mAh | 5160 mAh | |
| Charging | — | 45W | |
| Main camera | 50 MP | 50 MP | |
| Front camera | 32 MP | 13 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB | 256GB | |
| OS | — | Android 15 | |
| Brightness (peak) | 1800 nits | 4500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP64 | |
| Dimensions | 161.4×76.7×8.1 mm | 164.2×75.9×5.9 mm | |
| Weight | 213 g | 156 g | |
| Price | $799 | $299 |
OnePlus 15
- Main: 50MP
- Front: 32MP
Tecno Spark Slim
- Main: 50MP
- Front: 13MP
OnePlus 15
- 6.8" AMOLED
- Refresh rate: 120 Hz
Tecno Spark Slim
- 6.8" AMOLED
- Resolution: 1224x2720
- Refresh rate: 144 Hz
OnePlus 15
- 6500 mAh
- No wireless charging
Tecno Spark Slim
- 5160 mAh
- Wired: 45W
- No wireless charging
We compared OnePlus 15 and Tecno Spark Slim, covering their specs and all relevant benchmarks.
OnePlus 15 leads Tecno Spark Slim by 704.8% in our overall performance rating.
Price difference: $500. Tecno Spark Slim is cheaper by $500.
performance
In the "performance" category, the OnePlus 15 significantly outperforms the Tecno Spark Slim (77/100 vs 0/100).
display
In the "display" category, both devices are on the same level — 100/100.
camera
In the "camera" category, the OnePlus 15 is a bit better (34/100 vs 26/100).
battery
In the "battery" category, the OnePlus 15 and the Tecno Spark Slim are nearly equal (48/100 vs 46/100).
design
In the "design" category, the Tecno Spark Slim significantly outperforms the OnePlus 15 (100/100 vs 33/100).
value for money
In the "value for money" category, the Tecno Spark Slim significantly outperforms the OnePlus 15 (89/100 vs 55/100).
Which is better: the OnePlus 15 or the Tecno Spark Slim?
The OnePlus 15 significantly outperforms the Tecno Spark Slim by 27 points (61/100 vs 34/100).
What is the rating of the OnePlus 15 and the Tecno Spark Slim?
The OnePlus 15 has a MobileRank rating of 61/100, the Tecno Spark Slim — 34/100.
Which has the better camera: the OnePlus 15 or the Tecno Spark Slim?
The OnePlus 15 leads on camera score (34/100 vs 26/100).
Which is more powerful: the OnePlus 15 or the Tecno Spark Slim?
The OnePlus 15 leads on performance (77/100 vs 0/100).
Should you choose the OnePlus 15 over the Tecno Spark Slim?
The OnePlus 15 is a better fit for active users. The Tecno Spark Slim is a better fit for budget-conscious buyers.