OnePlus 15 vs Tecno Spark Slim
The OnePlus 15 (2025) runs on the Qualcomm Snapdragon 8 Elite Gen 5, while the Tecno Spark Slim (2025) runs on the Helio G200; launch prices were $799 and $299. By overall MobileRank rating, the OnePlus 15 leads — 86/100 vs 53/100 (a 33-point difference). Key differences: the OnePlus 15 has the bigger battery (6500 mAh vs 5160); the OnePlus 15 is faster in AnTuTu (3,606,149 vs 603,568); the Tecno Spark Slim is noticeably lighter (156g vs 213g).
Profile comparison
Category scores
OnePlus 15
Tecno Spark Slim
What makes OnePlus 15 better?
- Higher AnTuTu: 3606149 vs 603568
- Better Geekbench Single: 3639 vs 724
- Better Geekbench Multi: 11047 vs 1927
- Bigger battery: 6500 vs 5160 mAh
- Faster charging: 120W vs 45W
- Higher performance (97/100 vs 44/100)
- Better camera (78/100 vs 31/100)
- Longer battery life (89/100 vs 60/100)
What makes Tecno Spark Slim better?
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 156g vs 213g
- Cheaper at launch: $299 vs $799
- Better display (93/100 vs 84/100)
- Better portability (100/100 vs 50/100)
Comparison verdict
Comparing the OnePlus 15 vs the Tecno Spark Slim, the OnePlus 15 scores 33 points higher (86/100 vs 53/100). In the "performance" category, the OnePlus 15 leads (97/100 vs 44/100). In the "camera" category, the OnePlus 15 leads (78/100 vs 31/100). In the "battery" category, the OnePlus 15 leads (89/100 vs 60/100). Value score: OnePlus 15 — 86/100, Tecno Spark Slim — 44/100; it shows how far a model sits above or below the usual level for its price, and is not part of the overall rating. In the "performance" category, the OnePlus 15 significantly outperforms the Tecno Spark Slim (97/100 vs 44/100). In the "display" category, the Tecno Spark Slim is a bit better (93/100 vs 84/100). In the "camera" category, the OnePlus 15 significantly outperforms the Tecno Spark Slim (78/100 vs 31/100). In the "battery" category, the OnePlus 15 notably outperforms the Tecno Spark Slim (89/100 vs 60/100). In the "portability" category, the Tecno Spark Slim significantly outperforms the OnePlus 15 (100/100 vs 50/100).
Specs comparison
| Specification | OnePlus 15 | Tecno Spark Slim | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Helio G200 | |
| AnTuTu | 3606149 | 603568 | |
| Geekbench Single | 3639 | 724 | |
| Geekbench Multi | 11047 | 1927 | |
| Display | 6.8" AMOLED | 6.8" AMOLED | |
| Resolution | 1272x2772 | 1224x2720 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 6500 mAh | 5160 mAh | |
| Charging | 120W | 45W | |
| Wireless charging | 50W | — | |
| Main camera | 50 MP | 50 MP | |
| Ultrawide | 50 MP | 0 MP | |
| Telephoto | 50 MP | 0 MP | |
| Front camera | 32 MP | 13 MP | |
| RAM | 12GB / 16GB | 8GB | |
| Storage | 256GB / 512GB | 256GB | |
| OS | Android 16, OxygenOS 16 (Global), ColorOS 16 (China) | 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 | |
| Launch price | $799 | $299 |
Camera comparison
OnePlus 15
- Main: 50MP f/1.8
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Tecno Spark Slim
- Main: 50MP
- Front: 13MP
Display comparison
OnePlus 15
- 6.8" AMOLED
- Resolution: 1272x2772
- Refresh rate: 120 Hz
Tecno Spark Slim
- 6.8" AMOLED
- Resolution: 1224x2720
- Refresh rate: 144 Hz
Battery and charging
OnePlus 15
- 6500 mAh
- Wired: 120W
- Wireless: 50W
Tecno Spark Slim
- 5160 mAh
- Wired: 45W
- Wireless charging: no data
Overall performance score
We compared OnePlus 15 and Tecno Spark Slim, covering their specs and all relevant benchmarks.
OnePlus 15 leads Tecno Spark Slim by 497.5% in our overall performance rating.
Benchmarks
Launch prices and where to check today's
Launch price difference: $500. Tecno Spark Slim was $500 cheaper at launch.
Detailed category analysis
performance
In the "performance" category, the OnePlus 15 significantly outperforms the Tecno Spark Slim (97/100 vs 44/100).
display
In the "display" category, the Tecno Spark Slim is a bit better (93/100 vs 84/100).
camera
In the "camera" category, the OnePlus 15 significantly outperforms the Tecno Spark Slim (78/100 vs 31/100).
battery
In the "battery" category, the OnePlus 15 notably outperforms the Tecno Spark Slim (89/100 vs 60/100).
portability
In the "portability" category, the Tecno Spark Slim significantly outperforms the OnePlus 15 (100/100 vs 50/100).
Frequently asked questions
Which is better: the OnePlus 15 or the Tecno Spark Slim?
The OnePlus 15 significantly outperforms the Tecno Spark Slim by 33 points (86/100 vs 53/100).
What is the rating of the OnePlus 15 and the Tecno Spark Slim?
The OnePlus 15 has a MobileRank rating of 86/100, the Tecno Spark Slim — 53/100.
Which has the better camera: the OnePlus 15 or the Tecno Spark Slim?
The OnePlus 15 leads on camera score (78/100 vs 31/100).
Which is more powerful: the OnePlus 15 or the Tecno Spark Slim?
The OnePlus 15 leads on performance (97/100 vs 44/100).
Should you choose the OnePlus 15 over the Tecno Spark Slim?
The OnePlus 15 is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.