MacBook Air 13 (M3) vs MacBook Air 15 (M3)

Both laptops share the same Apple M3 8-core CPU and 10-core GPU, but the 13-inch model has a higher PL2 power limit (21W vs 12W), enabling slightly better sustained performance under load. The 13-inch model with 512GB storage and 16GB RAM is better for video editors who need faster file access and multitasking with large media files, while its 1.237kg weight and 15-hour battery life make it ideal for daily commuters. The 15-inch model’s larger 66.5Wh battery supports longer screen-on time for writers or remote workers, and its 13.4-inch display offers more real estate for coding or spreadsheet work. In UAE at AED 4299 vs AED 4499, the 13-inch wins because it offers double the storage for just AED 200 more. In India at ₹104900 vs ₹109900, the 13-inch wins on value because 512GB storage doubles local file capacity without a price premium.