Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Samsung - Galaxy S25 Ultra | Vivo - iQOO 13 |
|---|---|---|
| Main camera | 200 MP | 50 MP |
| Wired charging | 45 W | 120 W |
| Front camera | 12 MP | 32 MP |
| RAM | 12 GB | 16 GB |
| AnTuTu | 2150000 | 2820000 |
| Battery capacity | 5000 mAh | 6150 mAh |
Between the Galaxy S25 Ultra and iQOO 13, the Galaxy S25 Ultra comes out ahead in main camera / screen size, while the iQOO 13 wins on wired charging / front camera. Overall, the Galaxy S25 Ultra scores 73.3 and the iQOO 13 scores 73.5 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (73.3 vs 73.5). The decision is not about overall quality — both clear the bar — it is about which specific trade-offs fit your use.
Pick the Galaxy S25 Ultra if you photograph or shoot video regularly and want the better imaging pipeline of the two. The biggest gaps in its favor are main camera, screen size, promised os updates, among others. The single most decisive one: Main camera — 300.00% more. 200 MP vs 50 MP.
Pick the iQOO 13 if you care most about wired charging / front camera. Its strongest claims are wired charging, front camera, ram, among others. The single most decisive one: Wired charging — 166.67% more. 120 W vs 45 W.
Both ship with comparable 5g support, optical image stabilization, headphone jack, so those specs do not 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 says both are well-rounded; the differences are about trade-offs, not quality.
Which should you buy: Samsung - Galaxy S25 Ultra or Vivo - iQOO 13?
Vivo - iQOO 13 leads the current Mars Score by 0.2 points.The more useful decision is the trade-off behind that result: compare screen size, ram, pixel density, battery capacity against the way you will actually use the product.
Choose Samsung - Galaxy S25 Ultra if…
Samsung - Galaxy S25 Ultra has the measurable edge on main cam mp, screen size in, promised os years.
Choose Vivo - iQOO 13 if…
Vivo - iQOO 13 has the measurable edge on wired charging w, front cam mp, ram gb.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Samsung - Galaxy S25 Ultra wins
- ▲Main camera — 300.00% more. 200 MP vs 50 MP.
- ▲Screen size — 1.17% more. 6.9 " vs 6.82 ".
- ▲Promised OS updates: 7 (vs 4).
- ▲Wireless charging: 15 W vs 0 W.
Why Vivo - iQOO 13 wins
- ▲Wired charging — 166.67% more. 120 W vs 45 W.
- ▲Front camera — 166.67% more. 32 MP vs 12 MP.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲AnTuTu — 31.16% more. 2820000 vs 2150000.
- ▲Battery capacity — 23.00% more. 6150 mAh vs 5000 mAh.
- ▲Refresh rate — 20.00% more. 144 Hz vs 120 Hz.
- ▲Weight — 5.00 g less. 213 vs 218.
- ▲Pixel density — 1.80% more. 510 ppi vs 501 ppi.
Spec comparison
Design
| Spec | Samsung - Galaxy S25 Ultra | Vivo - iQOO 13 |
|---|---|---|
| Weight | 218 g | 213 glead |
| Thickness | 8.2 mm | 8.13 mmlead |
| Water resistanceⓘ | IP68 | IP69lead |
| Form factor | bar | bar |
Display
| Spec | Samsung - Galaxy S25 Ultra | Vivo - iQOO 13 |
|---|---|---|
| Screen size | 6.9 "lead | 6.82 " |
| Pixel densityⓘ | 501 ppi | 510 ppilead |
| Refresh rateⓘ | 120 Hz | 144 Hzlead |
| Peak brightnessⓘ | 2600 nits | 4500 nitslead |
Performance
| Spec | Samsung - Galaxy S25 Ultra | Vivo - iQOO 13 |
|---|---|---|
| RAMⓘ | 12 GB | 16 GBlead |
| Storageⓘ | 256 GB | 512 GBlead |
| AnTuTuⓘ | 2150000 | 2820000lead |
| CPU total clockⓘ | 21.4 GHz | 22.6 GHzlead |
Cameras
| Spec | Samsung - Galaxy S25 Ultra | Vivo - iQOO 13 |
|---|---|---|
| Main cameraⓘ | 200 MPlead | 50 MP |
| Front camera | 12 MP | 32 MPlead |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Samsung - Galaxy S25 Ultra | Vivo - iQOO 13 |
|---|---|---|
| Battery capacityⓘ | 5000 mAh | 6150 mAhlead |
| Wired chargingⓘ | 45 W | 120 Wlead |
| Wireless chargingⓘ | 15 Wlead | 0 W |
Connectivity
| Spec | Samsung - Galaxy S25 Ultra | Vivo - iQOO 13 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Samsung - Galaxy S25 Ultra | Vivo - iQOO 13 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 7 yearslead | 4 years |
Frequently asked
Which has better battery, Galaxy S25 Ultra or iQOO 13?+
iQOO 13 has 23.0% more battery — 5000 mAh vs 6150 mAh.
Which is lighter, Galaxy S25 Ultra or iQOO 13?+
iQOO 13 is 5g lighter — 218g vs 213g.
Is Galaxy S25 Ultra waterproof?+
Galaxy S25 Ultra has an IP68 rating.
Does iQOO 13 support 5G?+
Yes, iQOO 13 supports 5G.
Which has more RAM, Galaxy S25 Ultra or iQOO 13?+
iQOO 13 offers 16GB of RAM.
Which has a better camera, Galaxy S25 Ultra or iQOO 13?+
Galaxy S25 Ultra has a 200 MP main camera vs 50 MP.