Will Your Galaxy S21+ Charger Work With iPhone 16 Pro Max?
Cable, wall adapter, wireless charging & MagSafe compatibility (2026)
Works but with caveats
Your Galaxy S21+ charger works with the iPhone 16 Pro Max — but charges slower than max speed. Upgrade your adapter for full 30W charging.
🔌 Cable
CompatibleBoth use usb-c — your cable works. The iPhone 16 Pro Max supports up to 30W (vs 25W) so you may want a higher-wattage cable for max speed.
🔋 Wall Adapter
Works but slowerYour 25W adapter works but charges the iPhone 16 Pro Max at 25W instead of its 30W max. Upgrade to a 30W+ adapter for full speed.
⚡ Wireless Charging
CompatibleA standard Qi pad works for both phones at up to 7.5W. Only the iPhone 16 Pro Max supports Qi2. The Galaxy S21+ will charge via basic Qi at 7.5W on a Qi2 charger.
🧲 MagSafe
IncompatibleYour MagSafe charger snaps to the iPhone 16 Pro Max but not the Galaxy S21+. The Galaxy S21+ lacks built-in magnets — it'll charge via Qi at ~5W without magnetic alignment.
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Frequently Asked Questions
Will my Galaxy S21+ charger work with iPhone 16 Pro Max?
Your Galaxy S21+ charger works with the iPhone 16 Pro Max — but charges slower than max speed. Upgrade your adapter for full 30W charging.
Can I use my Galaxy S21+ cable with iPhone 16 Pro Max?
Both use usb-c — your cable works. The iPhone 16 Pro Max supports up to 30W (vs 25W) so you may want a higher-wattage cable for max speed.
Does MagSafe work with both phones?
Your MagSafe charger snaps to the iPhone 16 Pro Max but not the Galaxy S21+. The Galaxy S21+ lacks built-in magnets — it'll charge via Qi at ~5W without magnetic alignment.
Can I wirelessly charge both phones with the same charger?
A standard Qi pad works for both phones at up to 7.5W. Only the iPhone 16 Pro Max supports Qi2. The Galaxy S21+ will charge via basic Qi at 7.5W on a Qi2 charger.