PhoneLifespan

iPhone 15 vs GT 6

vs

Winner

Apple iPhone 15

Lifespan decides this one: the iPhone 15 is supported until Sep 2030 at $8.38 per month of safe use, while the GT 6 runs out in Jun 2028 ($16.50/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: iPhone 15 62 · GT 6 70 — methodology

The lifespan decider

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

Apple iPhone 15 $430
Safe to buy$8.38/mo
2023◆ Buy-by Sep 20282030
Realme GT 6 $400
Buy with care$16.50/mo
2024◆ Buy-by Jun 20262028

Category by category

Display
iPhone 15 50GT 6 80

The GT 6's screen is the better one — 6.78-inch ltpo amoled, 2780x1264, 120hz.

Performance
iPhone 15 80GT 6 82

Performance is a wash — same chip tier.

Camera
iPhone 15 62GT 6 79

The GT 6 has the stronger camera system (3 real rear lenses vs 2).

Battery
iPhone 15 47GT 6 90

5,500mAh vs 3,349mAh — the GT 6 lasts longer between charges.

Software longevity
iPhone 15 61GT 6 29

The iPhone 15 is supported until Sep 2030 — 27 months longer than the GT 6.

Value
iPhone 15 62GT 6 70

Overall value goes to the GT 6 at $16.50 per month of safe use.

Full spec table
SpeciPhone 15GT 6
Price (street)$430$400
Display6.1-inch Super Retina XDR OLED, 60Hz, Dynamic Island, up to 2000 nits peak6.78-inch LTPO AMOLED, 2780x1264, 120Hz
ChipsetApple A16 BionicQualcomm Snapdragon 8s Gen 3
RAM6GB8GB/12GB/16GB
Storage128GB/256GB/512GB256GB/512GB
Battery3,349 mAh5,500 mAh
ChargingWired ~50% in 30 min with 20W+; MagSafe 15W wireless120W wired
Rear cameras48MP main, 12MP ultra-wide50MP main, 50MP telephoto 2x, 8MP ultra-wide
Dimensions147.6 × 71.6 × 7.80 mm161.4 × 75.1 × 8.6 mm
Weight171 g199 g
Water resistanceIP68IP65
Supported untilSep 2030Jun 2028
iPhone 15 full verdict →GT 6 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.