MacBook Air 13" (M5)
M5 · 13.6″ Liquid Retina · 1.23 kg
MacBook Air 15" (M4)
M4 · 15.3″ · Fanless · $1,199
MacBook Air 13" (M5) takes it — here’s why.
In our weighted Specdex score, MacBook Air 13" (M5) lands at 94 and MacBook Air 15" (M4) at 93. That puts MacBook Air 13" (M5) ahead by 1 points — a narrow margin driven mostly by its strengths in the categories below.
Pick MacBook Air 13" (M5) if…
- ✓10-core CPU and up to 10-core GPU
- ✓16 GB unified memory baseline
- ✓Up to 18 hours video playback
Pick MacBook Air 15" (M4) if…
- ✓Silent fanless M4
- ✓Excellent battery
- ✓Huge bright display
Winner by scenario
Derived from the sub-score breakdown · not a separate testPerformance
TieCPU + GPU muscle for demanding work
Effectively tied — neither pulls a 2-point weighted lead.
Battery life
TieUnplugged endurance for travel and campus
Effectively tied — neither pulls a 2-point weighted lead.
Portability
MacBook Air 13" (M5)Weight, size, and carry-everywhere comfort
MacBook Air 13" (M5) leads on portability (96 vs 94).
Display
TiePanel quality for creative and media work
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 | MacBook Air 13" (M5) | MacBook Air 15" (M4) |
|---|---|---|
| Chip | Apple M5 chip (10-core CPU; 8 or 10-core GPU) | Apple M4 (10C CPU / 10C GPU) |
| RAM | 16 GB unified (base) | 16/24/32 GB |
| Storage | ▲ 512 GB / 1 / 2 / 4 TB SSD | 256 GB – 2 TB |
| Display | 13.6″ IPS LED, 2560×1664 at 224 ppi | ▲ 15.3″ Liquid Retina 2880×1864 |
| Battery (video) | Up to 18 hours | — |
| Battery (web) | Up to 15 hours | — |
| Weight | ▲ 1.23 kg | 1.51 kg |
| Ports | MagSafe 3, 2× Thunderbolt 4, 3.5 mm | — |
| OS | macOS 16 | — |
MacBook Air 13" (M5)
- +10-core CPU and up to 10-core GPU
- +16 GB unified memory baseline
- +Up to 18 hours video playback
- −No ProMotion 120 Hz display
- −2× Thunderbolt 4 (not TB5)
- −Two ports total
MacBook Air 15" (M4)
- +Silent fanless M4
- +Excellent battery
- +Huge bright display
- −Only 2 TB3 ports
- −Single external display (M4 base)
- −No ProMotion
FAQ: MacBook Air 13" (M5) vs MacBook Air 15" (M4)
Which is better, MacBook Air 13" (M5) or MacBook Air 15" (M4)? +
MacBook Air 13" (M5) scores 94 on our weighted rubric — ahead by 1. Your best pick depends on the sub-scores above.
Is MacBook Air 13" (M5) worth the price? +
At $1,099, MacBook Air 13" (M5) delivers a Specdex score of 94 — strongest in portability.
Is MacBook Air 15" (M4) worth the price? +
At $1,199, MacBook Air 15" (M4) delivers a Specdex score of 93 — strongest in battery.
Does MacBook Air 13" (M5) or MacBook Air 15" (M4) 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 better for portability, MacBook Air 13" (M5) or MacBook Air 15" (M4)? +
MacBook Air 13" (M5) — leads on portability (96 vs 94). Weight, size, and carry-everywhere comfort.