OnePlus 15T vs Tecno Spark Slim
The OnePlus 15T (2026) 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 15T leads — 86/100 vs 53/100 (a 33-point difference). Key differences: the OnePlus 15T has the bigger battery (6400 mAh vs 5160); the OnePlus 15T is faster in AnTuTu (3,927,976 vs 603,568); the Tecno Spark Slim is noticeably lighter (156g vs 206g).
Profile comparison
Category scores
OnePlus 15T
Tecno Spark Slim
What makes OnePlus 15T better?
- Higher AnTuTu: 3927976 vs 603568
- Better Geekbench Single: 3639 vs 724
- Better Geekbench Multi: 11047 vs 1927
- Bigger battery: 6400 vs 5160 mAh
- Faster charging: 100W vs 45W
- Higher performance (98/100 vs 44/100)
- Better camera (78/100 vs 31/100)
- Longer battery life (84/100 vs 60/100)
What makes Tecno Spark Slim better?
- Higher refresh rate: 144Hz vs 120Hz
- Lighter: 156g vs 206g
- Cheaper at launch: $299 vs $799
- Better display (93/100 vs 89/100)
- Better portability (100/100 vs 51/100)
Comparison verdict
Comparing the OnePlus 15T vs the Tecno Spark Slim, the OnePlus 15T scores 33 points higher (86/100 vs 53/100). In the "performance" category, the OnePlus 15T leads (98/100 vs 44/100). In the "camera" category, the OnePlus 15T leads (78/100 vs 31/100). In the "battery" category, the OnePlus 15T leads (84/100 vs 60/100). Value score: OnePlus 15T — 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 15T significantly outperforms the Tecno Spark Slim (98/100 vs 44/100). In the "display" category, the Tecno Spark Slim and the OnePlus 15T are nearly equal (93/100 vs 89/100). In the "camera" category, the OnePlus 15T significantly outperforms the Tecno Spark Slim (78/100 vs 31/100). In the "battery" category, the OnePlus 15T notably outperforms the Tecno Spark Slim (84/100 vs 60/100). In the "portability" category, the Tecno Spark Slim significantly outperforms the OnePlus 15T (100/100 vs 51/100).
Specs comparison
| Specification | OnePlus 15T | Tecno Spark Slim | |
|---|---|---|---|
| Processor | Qualcomm Snapdragon 8 Elite Gen 5 | Helio G200 | |
| AnTuTu | 3927976 | 603568 | |
| Geekbench Single | 3639 | 724 | |
| Geekbench Multi | 11047 | 1927 | |
| Display | 6.8" LTPO AMOLED | 6.8" AMOLED | |
| Resolution | 3168x1440 | 1224x2720 | |
| Refresh rate | 120 Hz | 144 Hz | |
| Battery | 6400 mAh | 5160 mAh | |
| Charging | 100W | 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 | Android 15 | |
| Brightness (peak) | 3600 nits | 4500 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP64 | |
| Dimensions | 150.6×71.8×8.4 mm | 164.2×75.9×5.9 mm | |
| Weight | 206 g | 156 g | |
| Launch price | $799 | $299 |
Camera comparison
OnePlus 15T
- Main: 50MP f/1.6
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Tecno Spark Slim
- Main: 50MP
- Front: 13MP
Display comparison
OnePlus 15T
- 6.8" LTPO AMOLED
- Resolution: 3168x1440
- Refresh rate: 120 Hz
Tecno Spark Slim
- 6.8" AMOLED
- Resolution: 1224x2720
- Refresh rate: 144 Hz
Battery and charging
OnePlus 15T
- 6400 mAh
- Wired: 100W
- Wireless: 50W
Tecno Spark Slim
- 5160 mAh
- Wired: 45W
- Wireless charging: no data
Overall performance score
We compared OnePlus 15T and Tecno Spark Slim, covering their specs and all relevant benchmarks.
OnePlus 15T leads Tecno Spark Slim by 550.8% 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 15T significantly outperforms the Tecno Spark Slim (98/100 vs 44/100).
display
In the "display" category, the Tecno Spark Slim and the OnePlus 15T are nearly equal (93/100 vs 89/100).
camera
In the "camera" category, the OnePlus 15T significantly outperforms the Tecno Spark Slim (78/100 vs 31/100).
battery
In the "battery" category, the OnePlus 15T notably outperforms the Tecno Spark Slim (84/100 vs 60/100).
portability
In the "portability" category, the Tecno Spark Slim significantly outperforms the OnePlus 15T (100/100 vs 51/100).
Frequently asked questions
Which is better: the OnePlus 15T or the Tecno Spark Slim?
The OnePlus 15T significantly outperforms the Tecno Spark Slim by 33 points (86/100 vs 53/100).
What is the rating of the OnePlus 15T and the Tecno Spark Slim?
The OnePlus 15T has a MobileRank rating of 86/100, the Tecno Spark Slim — 53/100.
Which has the better camera: the OnePlus 15T or the Tecno Spark Slim?
The OnePlus 15T leads on camera score (78/100 vs 31/100).
Which is more powerful: the OnePlus 15T or the Tecno Spark Slim?
The OnePlus 15T leads on performance (98/100 vs 44/100).
Should you choose the OnePlus 15T over the Tecno Spark Slim?
The OnePlus 15T is a better fit for gamers and power users, those who care about battery life, budget-conscious buyers.