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The short answer: yes — the iPhone 12 series supports WiFi 6 (802.11ax).
This guide explains what WiFi 6 is, why it matters on an iPhone 12, and practical steps to check and get the best wireless performance from your device.
What is WiFi 6 (802.11ax)?
WiFi 6, also known as 802.11ax, is the most recent mainstream Wi-Fi standard that improves speed, capacity, and efficiency — especially in crowded environments with many devices. It introduces technologies such as OFDMA, better MU-MIMO, and improved power management for mobile devices.
WiFi 6 support on iPhone 12
Apple added WiFi 6 support starting with the iPhone 11 generation in hardware; the iPhone 12 lineup continues and fully supports WiFi 6 features. That means if you pair an iPhone 12 with a WiFi 6 capable router and a properly configured network, you can take advantage of higher throughput, lower latency, and improved performance in congested networks.
Benefits you’ll likely notice
- Faster peak and real-world throughput when connected to a WiFi 6 router.
- Better performance when many devices are on the same network (fewer slowdowns).
- Improved battery efficiency thanks to Target Wake Time (TWT) features.
How to make sure you’re using WiFi 6
To get WiFi 6 speeds you need three things: a WiFi 6 capable router, correct network configuration (2.4 GHz vs 5 GHz vs 6 GHz considerations), and your iPhone 12 connected to the router’s WiFi 6 SSID. In most cases the router will advertise “WiFi 6” or “802.11ax” in its documentation or admin UI.
Steps to check on your iPhone 12
1) Open Settings → Wi-Fi, 2) tap the network name (the “i” icon) to view details. iOS doesn’t always label the connection as “WiFi 6” in the UI, but if your router supports 802.11ax and you’re connected to the router’s 5 GHz or dedicated WiFi 6 SSID, you’re very likely using WiFi 6. For absolute confirmation, check your router’s client list or logs — they typically show the connected device and the Wi-Fi standard in use.
Troubleshooting tips
If you expect WiFi 6 performance but don’t see it: restart your router and iPhone, ensure firmware on the router is up to date, place the router in an open area, and confirm the iPhone is connected to the faster band/SSID. Some router features (like compatibility or legacy modes) can limit WiFi 6 benefits if enabled.
In short, the iPhone 12 does support WiFi 6 and can leverage its advantages when paired with a proper WiFi 6 router and settings. Upgrading your router is the single most effective step if you want to fully unlock those gains.
