iPhone X 256GB
A11 · iOS · 256GB
iPhone X 128GB
A11 · iOS · 128GB
Dead heat — it comes down to priorities.
In our weighted Specdex score, iPhone X 256GB lands at 75 and iPhone X 128GB at 75. With scores tied, the decision hinges on which sub-scores matter most to you.
Pick iPhone X 256GB if…
- ✓iOS ecosystem
- ✓Long update support
- ✓Polished hardware
Pick iPhone X 128GB 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
TieSpecdex score per dollar at MSRP
Effectively tied — similar score-per-dollar at MSRP.
Score breakdown
Specs side-by-side
| Spec | iPhone X 256GB | iPhone X 128GB |
|---|---|---|
| Chipset | A11 | A11 |
| Storage | ▲ 256GB | 128GB |
| OS | iOS 11 | iOS 11 |
| Release year | 2017 | 2017 |
iPhone X 256GB
- +iOS ecosystem
- +Long update support
- +Polished hardware
- −Premium pricing
- −Limited customization
- −Lightning/USB-C split across generations
iPhone X 128GB
- +iOS ecosystem
- +Long update support
- +Polished hardware
- −Premium pricing
- −Limited customization
- −Lightning/USB-C split across generations
FAQ: iPhone X 256GB vs iPhone X 128GB
Which is better, iPhone X 256GB or iPhone X 128GB? +
Both score 75 on our weighted rubric — tied. Your best pick depends on the sub-scores above.
Is iPhone X 256GB worth the price? +
At $1,099, iPhone X 256GB delivers a Specdex score of 75 — strongest in cpu.
Is iPhone X 128GB worth the price? +
At $999, iPhone X 128GB delivers a Specdex score of 75 — strongest in cpu.
Does iPhone X 256GB or iPhone X 128GB 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.