Unihertz Jelly Pro 3GB+32GB, The Smallest 4G Smartphone in The World, Android 8.1 Oreo Unlocked Small Sized Cell Phone, Black

Firstly, as it comes up in almost every other review, the battery life; has to be charged everyday, maybe you can could get two days out of it in low activity, but I'm sure that's the norm these days with most phones and it's really not much of an inconvenience. It's a great little phone, easy to use and does everything I need it to do, ideal for running, light and durable (have dropped it a couple of times), decent camera, earphones nice and loud, thought the tiny touch screen would be tricky to type but it's actually okay. Would highly recommend, phones are getting way too big these days. :)

Cutest phone ever, and 100% functional! I got it because I travel all the time and wanted to have my home country SIM in a separate phone (that wouldn’t take up space). Jelly is the perfect solution. My boyfriend got his to take with him on nights out, which is also pretty clever! The touch screen is amazingly good, superb precise functionality. (If you have big fingers you can always use one a screen pen). The only thing is the battery life isn’t the best and I charge it every other day. But with that being the only issue I’m not complaining too much!

I’ve been using this phone for 2 weeks, and I’m extremely happy with it. I use social media occasionally and I had no problems whatsoever, just type a bit slower and use dictation from time time. Battery life is just fare but it charges very quickly. All apps work flawlessly. Overall build quality is very good, touch screen is sensitive, screen is bright and colours are very good. Main Camera is good with AF, nice! Selfie camera is just ok. In the end, it was exactly what I was looking for; small size, microSD up to 256 GB, 2 sim cards, removable battery what more could you ask!!

Great phone with 2 issues: SIM cards were not recognized (had to insert a piece of paper under battery) and very short battery life.

Jelly Pro is great to use jogging, at the gym, walking or as a backup phone. It's a fully functioning Android Oreo phone with all play store apps. It also has pedometer and easy access FM radio and MP3 player. Battery is like any other phone but it's smaller so won't last as long. You might have to charge it twice a day with heavy use but if your just using as a back up it's fine Jelly Pro responds well, downloads fast and has 4G. Screen is small but big enough to handle most tasks. Nice design, easy to use, compact, headphone socket, FM and internet radio access, mp3 player, play store, phone calls, two cameras, good audio sound. Love It!

This was to replace an ancient nokia phone whose standby time had dropped to a few hours. On top of the phone capabilities, I'm also using openvpn and a SIP client so I can answer/use my 'landline' over wifi. When I used CSipSimple, the battery life was good, easily 24hrs, with 5-10 minutes of calls in a day. Unfortunately, CSipSimple caused a bad echo for the other end so I've now switched to Linphone. With Linphone, the battery life doesn't appear to be so good, My estimate is that I'll only get around 10hrs of standby. The differing opinions on battery life are probably down to the different apps people are using and whether those apps are left running when the phone is on standby. I am not using the 3G/4G features, this is primarily being used as a voice phone. The screen is tiny; passwords have to be entered with care but it is useable as a touch screen.

Plenty of nice things to say about this phone, firstly the size which is perfect (I hate large phones) and the screen is very clear and responsive to touch. The battery life is ok most of the time but sometimes it would just drain out rapidly and I'd be needing a recharge after only about 10 hours of barely even using it. Not sure why this would happen - I only had the phone for about 3 weeks and barely ran any apps at all on it. Also, on two occasions whilst I was on the phone for about 10 minutes, it became so hot that I had to cut the conversation off because I was concerned that it might explode! Although you can take photos with it, they are very poor and you can forget texting a photograph to anyone as the maximum size of a text message is only 300kb. And while I could have lived with some of these failings, the main reason for returning it is because it simply would not access mobile data - at all! Wi-Fi connection is fine but the mobile data function simply doesn't work. It's weird because the phone does seem to think that it has access to the 4G network but no matter how hard you try, once you open a browser it simply fails to access the internet at all. I tried different sim cards, looked at the troubleshooting forums online, showed it to my super-geeky-gadget-savvy friend, nothing worked - the phone was never able to connect online and that's basically a huge deal-breaker as far as I'm concerned. Sorry Unihertz, maybe I'll try again in another 5 years once these issues are resolved.

It is a Smartphone and works well within the constraints of the small screen! But I’d still use my iPhone XR for most of the ‘playthings’ that that screen permits and to have the longevity that the iPhone provides in terms of battery. Having said that, simply having a very small phone that does not take up space when out and about is fantastic, and being unlikely to misplace it or have it stolen is a big plus. I use it as a backup phone and it’s ideal. The camera is good enough fo the limited amount of photography I do - odd snapshots etc, eg if hiring a car and wanting the before and after taking delivery. The screen is sharp and although small I find it relatively easy to use with my big hands although I sometimes use a pen! Yes the obvious downside is battery life but if you don’t use it like the conventional smartphone eg not constantly accessing the web or on WiFi then it will last a day - I charge my iPhone every night anyway so this causes me me no problem! I’d pay more and hopefully when an improved battery version is available will buy again!