iPhone 15 128GB
A16 · iOS · 128GB
iPhone 15 256GB
A16 · iOS · 256GB
Dead heat — it comes down to priorities.
In our weighted Specdex score, iPhone 15 128GB lands at 86 and iPhone 15 256GB at 86. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick iPhone 15 128GB if…
- ✓iOS ecosystem
- ✓Long update support
- ✓Polished hardware
Pick iPhone 15 256GB if…
- ✓iOS ecosystem
- ✓Long update support
- ✓Polished hardware
Winner by scenario
Derived from the sub-score breakdown · not a separate testPhotography
TieStills and video quality across lenses
Effectively tied — neither pulls a 2-point weighted lead.
Battery life
TieScreen-on time and charging
Effectively tied — neither pulls a 2-point weighted lead.
Performance
TieChipset speed for gaming and heavy apps
Effectively tied — neither pulls a 2-point weighted lead.
Display
TiePanel quality, brightness, refresh rate
Effectively tied — neither pulls a 2-point weighted lead.
Value for money
iPhone 15 128GBSpecdex score per dollar at MSRP
iPhone 15 128GB more score per dollar ($799 vs $899).
Score breakdown
Specs side-by-side
| Spec | iPhone 15 128GB | iPhone 15 256GB |
|---|---|---|
| Chipset | A16 | A16 |
| Storage | 128GB | ▲ 256GB |
| OS | iOS 17 | iOS 17 |
| Release year | 2023 | 2023 |
iPhone 15 128GB
- +iOS ecosystem
- +Long update support
- +Polished hardware
- −Premium pricing
- −Limited customization
- −Lightning/USB-C split across generations
iPhone 15 256GB
- +iOS ecosystem
- +Long update support
- +Polished hardware
- −Premium pricing
- −Limited customization
- −Lightning/USB-C split across generations
FAQ: iPhone 15 128GB vs iPhone 15 256GB
Which is better, iPhone 15 128GB or iPhone 15 256GB? +
Both score 86 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is iPhone 15 128GB worth the price? +
At $799, iPhone 15 128GB delivers a Specdex score of 86 — strongest in cpu.
Is iPhone 15 256GB worth the price? +
At $899, iPhone 15 256GB delivers a Specdex score of 86 — strongest in cpu.
Does iPhone 15 128GB or iPhone 15 256GB last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is the better value, iPhone 15 128GB or iPhone 15 256GB? +
iPhone 15 128GB — more score per dollar ($799 vs $899). Specdex score per dollar at MSRP.