PhoneLifespan

Edge 70 vs 15

vs

Winner

Xiaomi 15

The 15 wins this one, taking performance and camera decisively. Against the Edge 70 it's also the sounder buy at $16.87 per month of safe use.

Value Score: Edge 70 55 · 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 Edge 70 $730
Safe to buy$18.08/mo
2025◆ Buy-by Oct 20272029
Xiaomi 15 $750
Safe to buy$16.87/mo
2025◆ Buy-by Mar 20282030

Category by category

Display
Edge 70 8015 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
Edge 70 5515 98

The 15's Snapdragon 8 Elite is simply the faster chip.

Camera
Edge 70 6715 79

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

Battery
Edge 70 7615 85

5,240mAh vs 4,800mAh — the 15 lasts longer between charges.

Software longevity
Edge 70 4815 53

The 15 is supported until Mar 2030 — 4 months longer than the Edge 70.

Value
Edge 70 5515 67

Overall value goes to the 15 at $16.87 per month of safe use.

Full spec table
SpecEdge 7015
Price (street)$730$750
Display6.7-inch P-OLED, 1.5K, 120Hz, up to 4500 nits6.36-inch CrystalRes AMOLED, 2670×1200 (460 ppi), 1–120Hz LTPO, up to 3200 nits peak, Dolby Vision/HDR10+
ChipsetQualcomm Snapdragon 7 Gen 4Snapdragon 8 Elite
RAM12GB12GB
Storage256GB/512GB256GB/512GB
Battery4,800 mAh5,240 mAh
Charging68W wired, 15W wireless90W wired, 50W wireless
Rear cameras50MP main, 50MP ultra-wide50MP main (Light Fusion 900, f/1.62), 50MP ultra-wide, 50MP telephoto (Leica 60mm floating)
Dimensions160 × 74 × 5.99 mm152.3 × 71.2 × 8.08 mm
Weight159 g191 g
Water resistanceIP68/IP69IP68
Supported untilOct 2029Mar 2030
Edge 70 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.