How to Fix Slow WiFi Hotspot and Tethering Speeds on Android and iPhone

Mobile hotspot and tethering are lifesavers when you’re away from a home WiFi network, but they often feel slower than your phone’s own browsing speed. That mismatch is real — and it has specific causes. This guide walks through every fix, from the simplest setting changes to deeper carrier and hardware issues.

Why Is Hotspot Speed Slower Than Your Phone’s Data?

Your phone gets its cellular data at one speed. When it re-broadcasts that data as a WiFi hotspot, several things can clip the speed:

• Carrier throttling: Many “unlimited” plans include full-speed hotspot data only up to a cap (often 15–50 GB), then throttle tethering to 600 Kbps–3 Mbps for the rest of the billing cycle.
• Deprioritization: On congested towers, hotspot traffic is often deprioritized below regular phone data even before you hit any cap.
• WiFi band choice: If your hotspot broadcasts on 2.4 GHz, the connected device uses a slower, more congested radio channel.
• Device overhead: Your phone is simultaneously running cellular radio, WiFi radio, and routing — which costs CPU and battery.

Fix 1: Switch to the 5 GHz Band

The single fastest software change you can make. The default 2.4 GHz band tops out around 150–300 Mbps in ideal conditions and suffers heavy interference from neighboring networks. Switching to 5 GHz can double or triple real-world WiFi throughput between your phone and laptop.

On Android

Go to Settings → Hotspot & Tethering → WiFi Hotspot, then look for AP Band or Band and select 5 GHz or Prefer 5 GHz. The exact path varies by manufacturer — Samsung may label it differently than stock Android.

On iPhone

Go to Settings → Personal Hotspot and turn off Maximize Compatibility. When this toggle is on, your iPhone forces the hotspot to 2.4 GHz for compatibility with older devices. Turning it off lets the phone use 5 GHz automatically for faster connections.

Caveat: 5 GHz has shorter range. Keep your laptop or tablet within about 10–15 feet of your phone for the best results.

Fix 2: Disable Low Power Mode and Battery Saver

Both iOS Low Power Mode and Android’s Battery Saver reduce background activity, CPU performance, and radio transmission power — all of which hurt hotspot speeds.

• iPhone: Settings → Battery → turn off Low Power Mode
• Android: Settings → Battery → Battery Saver → turn off

If battery life is a concern while tethering, plug your phone into a charger. This eliminates the battery constraint and keeps performance at its peak.

Fix 3: Try USB Tethering Instead

USB tethering connects your laptop to your phone’s data over a physical USB cable. This bypasses the WiFi radio entirely, eliminating interference and reducing overhead. In most tests, USB tethering is 20–40% faster than WiFi hotspot and has lower latency too — and it charges your phone at the same time.

On Android, connect via USB, then go to Settings → Hotspot & Tethering → USB Tethering and enable it. On iPhone, plug in and trust the computer — tethering activates automatically and shows up as a network adapter on your Mac or PC.

Fix 4: Check and Upgrade Your Carrier Plan

If your speeds suddenly dropped to under 1 Mbps mid-month, you’ve almost certainly hit your plan’s hotspot data cap. Carriers including T-Mobile, Verizon, and AT&T throttle hotspot speeds after a certain amount of high-speed data is used each billing cycle. Log into your carrier’s app and check your hotspot usage.

Options if you’re throttled:

• Upgrade to a plan with a higher or unlimited hotspot data cap
• Add a hotspot data pass for the rest of the month
• Wait for the billing cycle to reset

Fix 5: Limit the Number of Connected Devices

Every device sharing your hotspot takes a slice of bandwidth. If your phone is simultaneously serving a laptop, a tablet, a smartwatch, and a friend’s device, each competes for the same cellular uplink. On Android, you can cap the number of allowed connections: open WiFi Hotspot settings and look for Device Limit. Disconnect any device you’re not actively using.

Fix 6: Move to an Area with Better Cellular Signal

Your hotspot speed is bounded by the cellular signal your phone receives. If you’re at −100 dBm or worse, no software fix will help. Move to a window or a higher floor, step outside, or relocate to an area with a stronger signal. See our guide on WiFi signal strength and dBm values to understand what those signal numbers mean in practice.

Fix 7: Update Your Phone’s Software

Carrier updates and OS updates frequently include radio firmware patches and hotspot performance improvements. On iPhone, go to Settings → General → Software Update. On Android, go to Settings → System → System Update. On iPhone, also check for carrier settings updates via Settings → General → About — if a carrier update is available, iOS will prompt you automatically.

Quick Checklist

1. Turn off Maximize Compatibility (iPhone) or switch AP Band to 5 GHz (Android)
2. Disable Low Power Mode / Battery Saver and plug your phone into a charger
3. Check your carrier plan — confirm you haven’t hit your hotspot data cap
4. Try USB tethering for maximum speed and lowest latency
5. Disconnect devices you’re not actively using
6. Move to an area with a stronger cellular signal
7. Install the latest OS and carrier updates

To verify what speeds you’re actually getting through your hotspot, run a speed test on the tethered device and compare the result to a test on your phone’s own browser. The gap between the two numbers reveals exactly how much the hotspot chain is costing you. If the results are similar, your cellular signal is the bottleneck. If there’s a big gap, one of the fixes above will close it. If you’re regularly tethering for work, also consider reading our guide on fixing slow speeds when using a VPN, since many remote workers layer a VPN on top of hotspot and compound the problem.