GT 7 vs 15

Phone 1

Phone 2

Winner

Realme GT 7

The GT 7 wins this one, taking software longevity and battery decisively. Against the 15 it's also the sounder buy at $9.26 per month of safe use.

Value Score: GT 7 76 · 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.

Realme GT 7 $550

Safe to buy$9.26/mo

2025◆ Buy-by May 20292031

Xiaomi 15 $750

Safe to buy$16.82/mo

2025◆ Buy-by Mar 20282030

Category by category

Display

GT 7 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

GT 7 9415 98

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

Camera

GT 7 7915 79

Camera systems are comparable on paper — pick by sample photos.

Battery

GT 7 10015 85

7,000mAh vs 5,240mAh — the GT 7 lasts longer between charges.

Software longevity

GT 7 7115 53

The GT 7 is supported until May 2031 — 15 months longer than the 15.

Value

GT 7 7615 67

Overall value goes to the GT 7 at $9.26 per month of safe use.

Full spec table

Spec	GT 7	15
Price (street)	$550	$750
Display	6.78-inch AMOLED, 2780x1264, 120Hz	6.36-inch CrystalRes AMOLED, 2670×1200 (460 ppi), 1–120Hz LTPO, up to 3200 nits peak, Dolby Vision/HDR10+
Chipset	MediaTek Dimensity 9400e	Snapdragon 8 Elite
RAM	8GB/12GB	12GB
Storage	256GB/512GB	256GB/512GB
Battery	7,000 mAh	5,240 mAh
Charging	120W wired	90W wired, 50W wireless
Rear cameras	50MP main, 50MP telephoto 2x, 8MP ultra-wide	50MP main (Light Fusion 900, f/1.62), 50MP ultra-wide, 50MP telephoto (Leica 60mm floating)
Dimensions	162.4 × 76.1 × 8.3 mm	152.3 × 71.2 × 8.08 mm
Weight	206 g	191 g
Water resistance	IP68/IP69	IP68
Supported until	May 2031	Mar 2030

GT 7 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.