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

Both MacBook Air models share the same M3 8-core CPU and 10-core GPU, so CPU/GPU performance is identical. The 13-inch is fanless and runs cooler under sustained loads due to its lower 10.5W PL1 vs. the 15-inch’s 12W PL1, making it more consistent in prolonged tasks. The 13-inch model is best for students and mobile professionals who prioritize portability (1.237 kg) and 18-hour battery life for web browsing and light office work. The 15-inch model suits content creators needing a larger 15.3-inch display for multitasking and video editing, plus 66.5 Wh battery for longer unplugged use. In UAE at AED 3499 vs. AED 4499, the 13-inch is better because it saves AED 1000 with identical performance and lighter weight. In India at ₹84900 vs. ₹109900, the 13-inch wins on value because it cuts ₹25000 while keeping the same M3 chip and 16GB RAM.