PhoneLifespan

iPhone 15 vs X100

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 X100 runs out in Nov 2028 ($21.16/month). On a which-lasts-longer question, that's not a tie — it's the whole answer.

Value Score: iPhone 15 62 · X100 64 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
Vivo X100 $620
Buy with care$21.16/mo
2023◆ Buy-by Nov 20262028

Category by category

Display
iPhone 15 50X100 90

The X100's screen is the better one — 6.78-inch ltpo amoled, 2800x1260, 120hz, up to 3000 nits peak.

Performance
iPhone 15 80X100 93

The X100's MediaTek Dimensity 9300 is simply the faster chip.

Camera
iPhone 15 62X100 79

The X100 has the stronger camera system (3 real rear lenses vs 2).

Battery
iPhone 15 47X100 80

5,000mAh vs 3,349mAh — the X100 lasts longer between charges.

Software longevity
iPhone 15 61X100 35

The iPhone 15 is supported until Sep 2030 — 22 months longer than the X100.

Value
iPhone 15 62X100 64

Pound for pound, these two are equally good deals.

Full spec table
SpeciPhone 15X100
Price (street)$430$620
Display6.1-inch Super Retina XDR OLED, 60Hz, Dynamic Island, up to 2000 nits peak6.78-inch LTPO AMOLED, 2800x1260, 120Hz, up to 3000 nits peak
ChipsetApple A16 BionicMediaTek Dimensity 9300
RAM6GB12GB/16GB
Storage128GB/256GB/512GB256GB/512GB
Battery3,349 mAh5,000 mAh
ChargingWired ~50% in 30 min with 20W+; MagSafe 15W wireless120W wired
Rear cameras48MP main, 12MP ultra-wide50MP main, 50MP ultra-wide, 64MP telephoto 3x periscope
Dimensions147.6 × 71.6 × 7.80 mm164.1 × 75.3 × 8.2 mm
Weight171 g202 g
Water resistanceIP68IP68
Supported untilSep 2030Nov 2028

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