Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Motorola - Razr 50 Ultra | OnePlus 15 |
|---|---|---|
| Wireless charging | 15 W | 50 W |
| Wired charging | 45 W | 120 W |
| Battery capacity | 4000 mAh | 7500 mAh |
| AnTuTu | 1610000 | 2950000 |
| Refresh rate | 165 Hz | 120 Hz |
| RAM | 12 GB | 16 GB |
Between the Razr 50 Ultra and OnePlus 15, the Razr 50 Ultra comes out ahead in refresh rate / weight, while the OnePlus 15 wins on wireless charging / wired charging. Overall, the Razr 50 Ultra scores 65.6 and the OnePlus 15 scores 76.7 on our Mars Score.
Which should you buy?
The OnePlus 15 is the clear pick on raw spec strength, leading by 11.1 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Razr 50 Ultra if the display is what you stare at all day — refresh rate, brightness, or sharpness is where the difference will be most visible. The biggest gaps in its favor are refresh rate, weight, screen size, among others. The single most decisive one: Refresh rate — 37.50% more. 165 Hz vs 120 Hz.
Pick the OnePlus 15 if your top frustration with your current device is running out of charge before the day ends — endurance is the lead spec here. Its strongest claims are wireless charging, wired charging, battery capacity, among others. The single most decisive one: Wireless charging — 233.33% more. 50 W vs 15 W.
Both ship with comparable main camera, 5g support, front camera, so those specs do not separate the two — focus on the differences below.
Bottom line: the OnePlus 15 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Motorola - Razr 50 Ultra or OnePlus 15?
OnePlus 15 leads the current Mars Score by 11.1 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 Motorola - Razr 50 Ultra if…
Motorola - Razr 50 Ultra has the measurable edge on refresh rate hz, weight g, screen size in.
Choose OnePlus 15 if…
OnePlus 15 has the measurable edge on wireless charging w, wired charging w, battery capacity mah.
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 Motorola - Razr 50 Ultra wins
- ▲Refresh rate — 37.50% more. 165 Hz vs 120 Hz.
- ▲Weight — 22.00 g less. 189 vs 211.
- ▲Screen size — 1.77% more. 6.9 " vs 6.78 ".
- ▲Water resistance: IPX8 (vs IP69).
Why OnePlus 15 wins
- ▲Wireless charging — 233.33% more. 50 W vs 15 W.
- ▲Wired charging — 166.67% more. 120 W vs 45 W.
- ▲Battery capacity — 87.50% more. 7500 mAh vs 4000 mAh.
- ▲AnTuTu — 83.23% more. 2950000 vs 1610000.
- ▲RAM — 33.33% more. 16 GB vs 12 GB.
- ▲Pixel density — 8.96% more. 450 ppi vs 413 ppi.
- ▲Promised OS updates: 5 (vs 3).
Spec comparison
Design
| Spec | Motorola - Razr 50 Ultra | OnePlus 15 |
|---|---|---|
| Weight | 189 glead | 211 g |
| Thickness | 7.1 mmlead | 8.3 mm |
| Water resistanceⓘ | IPX8lead | IP69 |
| Form factor | foldable_clamshelllead | bar |
Display
| Spec | Motorola - Razr 50 Ultra | OnePlus 15 |
|---|---|---|
| Screen size | 6.9 "lead | 6.78 " |
| Pixel densityⓘ | 413 ppi | 450 ppilead |
| Refresh rateⓘ | 165 Hzlead | 120 Hz |
| Peak brightnessⓘ | 3000 nits | 4500 nitslead |
Performance
| Spec | Motorola - Razr 50 Ultra | OnePlus 15 |
|---|---|---|
| RAMⓘ | 12 GB | 16 GBlead |
| Storageⓘ | 512 GB | 512 GB |
| AnTuTuⓘ | 1610000 | 2950000lead |
| CPU total clockⓘ | 16.4 GHz | 23.6 GHzlead |
Cameras
| Spec | Motorola - Razr 50 Ultra | OnePlus 15 |
|---|---|---|
| Main cameraⓘ | 50 MP | 50 MP |
| Front camera | 32 MP | 32 MP |
| Optical image stabilizationⓘ | true | true |
Battery
| Spec | Motorola - Razr 50 Ultra | OnePlus 15 |
|---|---|---|
| Battery capacityⓘ | 4000 mAh | 7500 mAhlead |
| Wired chargingⓘ | 45 W | 120 Wlead |
| Wireless chargingⓘ | 15 W | 50 Wlead |
Connectivity
| Spec | Motorola - Razr 50 Ultra | OnePlus 15 |
|---|---|---|
| 5G supportⓘ | true | true |
| Headphone jack | false | false |
| microSD slot | false | false |
Operating System
| Spec | Motorola - Razr 50 Ultra | OnePlus 15 |
|---|---|---|
| OS | Android | Android |
| Promised OS updates | 3 years | 5 yearslead |
Frequently asked
Which has better battery, Razr 50 Ultra or OnePlus 15?+
OnePlus 15 has 87.5% more battery — 4000 mAh vs 7500 mAh.
Which is lighter, Razr 50 Ultra or OnePlus 15?+
Razr 50 Ultra is 22g lighter — 189g vs 211g.
Is Razr 50 Ultra waterproof?+
Razr 50 Ultra has an IPX8 rating.
Does OnePlus 15 support 5G?+
Yes, OnePlus 15 supports 5G.
Which has more RAM, Razr 50 Ultra or OnePlus 15?+
OnePlus 15 offers 16GB of RAM.
Which has a better camera, Razr 50 Ultra or OnePlus 15?+
OnePlus 15 has a 50 MP main camera vs 50 MP.