MagSafe Gen 1 vs Gen 2: Speed, Compatibility & Should You Upgrade?
By WillItSnap Team · March 2026
MagSafe Gen 1 charges at 15W (iPhone 12-15). Gen 2 charges at 25W (iPhone 16+). Gen 2 chargers are backward compatible with older iPhones at 15W.
Speed Comparison
| Feature | MagSafe Gen 1 | MagSafe Gen 2 |
|---|---|---|
| Max Speed | 15W | 25W |
| Requires Adapter | 20W+ | 30W+ |
| Bundled iPhones | iPhone 12-15 | iPhone 16+ |
| Backward Compatible | N/A | Yes, charges older iPhones at 15W |
Should You Upgrade?
Yes, if you have iPhone 16 or newer. Gen 2 nearly doubles your wireless charging speed (15W → 25W).
No, if you have iPhone 15 or older. Your phone maxes out at 15W regardless — a Gen 2 charger won't charge faster.
Learn More
Related Terms
MagSafe
Apple's magnetic charging and accessory system for iPhone, using a ring of magnets for precise alignment.
Qi2 vs MagSafe
MagSafe is Apple's proprietary magnetic charging system. Qi2 is the open standard built on MagSafe's technology. They're cross-compatible but differ in speed and ecosystem.
Qi2 25W (Qi2.2)
Also called Qi2.2, this is the latest wireless charging standard supporting 25W with magnetic alignment. First certified chargers arrived late 2025.