Let me start by saying this little gadget has been a game-changer for my road trips. The WDINLY Portable WiFi Hotspot is about the size of a credit card but thicker, and it fits perfectly in my pocket. That 1800mAh battery? It actually lasts through a full workday - I got about 8 hours of continuous use streaming music and checking emails.

The setup was surprisingly easy (once I figured out the APN settings). Just pop in a SIM card - I used my old AT&T one - and you're good to go. The signal strength impressed me most. Even when camping in some remote areas, I maintained decent connectivity for basic browsing.

Now for the not-so-great parts: The initial 2GB data disappears fast if you're not careful. And yes, some menu options appear in what looks like Chinese first before switching to English - confusing at first but manageable. The plastic casing does feel a bit flimsy too.

Performance-wise, speeds averaged around 15-20Mbps in urban areas - enough for video calls but don't expect to stream 4K content smoothly. It handled up to 5 connected devices without noticeable lag during my testing.

Would I recommend it? For travelers needing occasional connectivity without contracts, absolutely. But heavy data users might want to look at more premium options. Just make sure your carrier supports the device first!