Between the Phone (3a) Pro and Reno 13 Pro, the Phone (3a) Pro comes out ahead in several specs, while the Reno 13 Pro wins on antutu and wired charging. Overall, the Phone (3a) Pro scores 63.8 and the Reno 13 Pro scores 68.3 on our Mars Score.
Which should you buy?
The Reno 13 Pro edges ahead on the Mars Score (63.8 vs 68.3), but the 4.5-point gap is small enough that the right pick comes down to which spec advantages matter to you.
The Phone (3a) Pro doesn't pull ahead on any single popular-comparison spec — its strengths sit in the spec table groups rather than the headline advantages.
Pick the Reno 13 Pro if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. Its strongest claims are antutu, wired charging, pixel density, among others.
Both ship with comparable ram, main camera, refresh rate, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why Nothing - Phone (3a) Pro wins
- No decisive advantages.
Why Oppo - Reno 13 Pro wins
- ▲AnTuTu — 68.24% more. 1430000 vs 850000.
- ▲Wired charging — 60.00% more. 80 W vs 50 W.
- ▲Pixel density — 17.05% more. 453 ppi vs 387 ppi.
- ▲Battery capacity — 16.00% more. 5800 mAh vs 5000 mAh.
- ▲Weight — 16.00 g less. 195 vs 211.
- ▲Screen size — 0.89% more. 6.83 " vs 6.77 ".
- ▲Water resistance: IP68 (vs IP64).
- ▲Promised OS updates: 4 (vs 3).
Spec comparison
Design
| Spec | Nothing - Phone (3a) Pro | Oppo - Reno 13 Pro |
|---|---|---|
| Weight | 211 g | 195 glead |
| Thickness | 8.4 mm | 7.55 mmlead |
| Water resistanceⓘ | IP64 | IP68lead |
| Form factor | bar | bar |
Display
| Spec | Nothing - Phone (3a) Pro | Oppo - Reno 13 Pro |
|---|---|---|
| Screen sizeⓘ | 6.77 " | 6.83 "lead |
| Pixel densityⓘ | 387 ppi | 453 ppilead |
| Refresh rateⓘ | 120 Hz | 120 Hz |
| Peak brightnessⓘ | 3000 nitslead | 1200 nits |
Performance
Cameras
| Spec | Nothing - Phone (3a) Pro | Oppo - Reno 13 Pro |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 50 MP | 50 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Nothing - Phone (3a) Pro | Oppo - Reno 13 Pro |
|---|---|---|
| Battery capacity | 5000 mAh | 5800 mAhlead |
| Wired chargingⓘ | 50 W | 80 Wlead |
| Wireless chargingⓘ | 0 W | 0 W |
Connectivity
| Spec | Nothing - Phone (3a) Pro | Oppo - Reno 13 Pro |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Nothing - Phone (3a) Pro | Oppo - Reno 13 Pro |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 3 years | 4 yearslead |
Frequently asked
Which has better battery, Phone (3a) Pro or Reno 13 Pro?+
Reno 13 Pro has 16.0% more battery — 5000 mAh vs 5800 mAh.
Which is lighter, Phone (3a) Pro or Reno 13 Pro?+
Reno 13 Pro is 16g lighter — 211g vs 195g.
Is Phone (3a) Pro waterproof?+
Phone (3a) Pro has an IP64 rating.
Does Reno 13 Pro support 5G?+
Yes, Reno 13 Pro supports 5G.
Which has a better camera, Phone (3a) Pro or Reno 13 Pro?+
Reno 13 Pro has a 50 MP main camera vs 50 MP.
Spec-level deep dives
More from the same brands
vsMars is reader-supported. When you buy through links on our site, we may earn an affiliate commission at no extra cost to you. Learn more.