Razr Ultra 2025 vs 15

Phone 1

Phone 2

Winner

Xiaomi 15

Lifespan decides this one: the 15 is supported until Mar 2030 at $16.89 per month of safe use, while the Razr Ultra 2025 runs out in May 2029 ($31.57/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: Razr Ultra 2025 53 · 15 67 — methodology

The lifespan decider

When specs are close, support length decides it — this is what each phone costs per month of safe use.

Motorola Razr Ultra 2025 $1100

Buy with care$31.57/mo

2025◆ Buy-by May 20272029

Xiaomi 15 $750

Safe to buy$16.89/mo

2025◆ Buy-by Mar 20282030

Category by category

Display

Razr Ultra 2025 7015 90

The 15's screen is the better one — 6.36-inch crystalres amoled, 2670×1200 (460 ppi), 1–120hz ltpo, up to 3200 nits peak, dolby vision/hdr10+.

Performance

Razr Ultra 2025 9815 98

Performance is a wash — same chip tier.

Camera

Razr Ultra 2025 6715 79

The 15 has the stronger camera system (3 real rear lenses vs 2).

Battery

Razr Ultra 2025 7415 85

5,240mAh vs 4,700mAh — the 15 lasts longer between charges.

Software longevity

Razr Ultra 2025 4115 53

The 15 is supported until Mar 2030 — 10 months longer than the Razr Ultra 2025.

Value

Razr Ultra 2025 5315 67

Overall value goes to the 15 at $16.89 per month of safe use.

Full spec table

Spec	Razr Ultra 2025	15
Price (street)	$1100	$750
Display	Inner: 7.0-inch foldable pOLED, Super HD (1224p), up to 165Hz, Pantone Validated; Cover: 4.0-inch pOLED, up to 165Hz	6.36-inch CrystalRes AMOLED, 2670×1200 (460 ppi), 1–120Hz LTPO, up to 3200 nits peak, Dolby Vision/HDR10+
Chipset	Snapdragon 8 Elite	Snapdragon 8 Elite
RAM	16GB	12GB
Storage	512GB	256GB/512GB
Battery	4,700 mAh	5,240 mAh
Charging	68W TurboPower wired, 30W wireless	90W wired, 50W wireless
Rear cameras	50MP main, 50MP ultra-wide	50MP main (Light Fusion 900, f/1.62), 50MP ultra-wide, 50MP telephoto (Leica 60mm floating)
Dimensions	Folded 73.99 × 88.10 × 15.69 mm; Unfolded 73.99 × 171.48 × 7.19 mm	152.3 × 71.2 × 8.08 mm
Weight	199 g	191 g
Water resistance	IP48 (dust and water resistant)	IP68
Supported until	May 2029	Mar 2030

Razr Ultra 2025 full verdict →15 full verdict →Longevity master board →

Scores and verdicts are computed from our verified database — see exactly how. Specs from manufacturer documentation; prices reflect major US retailers.