Unihertz Titan Slim smartphone review – What’s old is new again

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CROWDFUNDING REVIEW – One of my all-time favorite mobile phones was the Palm Treo 650 with its built-in tiny QWERTY keyboard. That was back in 2005, 2 years before the iPhone changed the entire smartphone landscape forever. I loved that little phone with the built-in keyboard. Would I ever want another phone with a physical keyboard? That’s what I decided to find out when I was offered a look at the Unihertz Titan Slim Android Smartphone which is currently seeking funding on Kickstarter.

What is it?

The Unihertz Titan Slim is an Android smartphone that has a built-in physical QWERTY keyboard. It’s a slimmer/narrower version of the Unihertz Titan Pocket that Julian reviewed last year.

What’s in the box?

  • Unihertz Titan Slim smartphone
  • Screen protector (it was pre-installed on mine)
  • USB-C cable
  • Headphone 3.5mm to USB-C adapter
  • SIM tool
  • AC adapter

Design and features

At first glance of the Unihertz Titan Slim Android Smartphone, you might think it’s an old school Blackberry phone. This phone has a shape of a modern touchscreen smartphone, but the keyboard located below the display puts out strong retro vibes.

The phone’s display might look large in the first image above where I’m holding it in my hand, but in reality, it’s only 4.2″ (768 x 1280 resolution) and for someone like me who has been using a Max version of the past two iPhones, it feels small and cramped.

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The keyboard is small too. Really small. I remember loving the Treo 650’s keyboard but I must have had tinier thumbs back then. Can you type on the Titan Slim’s keyboard? Sure. It works fine and it has great tactile feedback.

The keys have a faceted type of shape which helps your thumb feel the individual keys but there’s no special bump on the F and J keys so your thumb knows the home row. Yes, I’m a touch typist.

In addition to the display and keyboard, the front of the phone also has a fingerprint scanner which is located above the T and Y keys. I have been really surprised by how well it works for me because I ALWAYS have issues with fingerprint scanners.

Note that the fingerprint scanner button doubles as a HOME button when you tap it.

The bottom edge of the Unihertz Titan Slim has a microphone, speaker, and a USB-C charging port.

You’ll find the 48MP camera lens and flash on the back of the phone along with the Unihertz logo.

The right side of the phone has a volume rocker button and power button.

The left side has dual-nano SIM card slots. The red button is a multi-function button. If you’re in the camera app, it functions as a dedicated camera shutter button. When you’re outside the camera app, holding down the button will toggle the flash to serve as a flashlight and a double-tap of the button will take a screenshot.

On the top edge of the phone, you’ll find another microphone and an infrared port. Using the ZaZaRemote app that comes preinstalled on the phone, you can use the Titan Slim as a universal remote control for your IR compatible devices.

Although the phone has a plastic case (I think), it feels well made and solid. It doesn’t creak, crack, or rattle when I squeeze and shake it. The narrow width is actually very comfortable in hand. But the screen and case are fingerprint magnets.


The Unihertz Titan Slim runs on Android version 11 which is one version behind the current version. My review phone’s last security update was from September. When I asked Unihertz about OS updates, I was not given a clear answer which means I would not expect this phone to get an update to Android version 12 at any point in its life.

I was happy to see that the phone has very little bloatware as far as extra apps. The only extras over stock Android are the IR app, NFC app, FM radio app, Notebook app, and a couple of others.


Don’t buy the Unihertz Titan Slim for its camera. Here are some samples. Not terrible, but not excellent either.

Making and receiving calls with the Unihertz Titan Slim

This is not a 5G phone so there’s that… but otherwise, I had no issues making and receiving calls on the T-Mobile network using my T-Mobile SIM from my iPhone. Speaking of T-Mobile, you need to be aware of which carriers you can use with this phone.

Titan Slim works fine with Verizon and T-Mobile network. But as it is not certified by Verizon, you may not be able to activate your new SIM card with it. You can activate a new SIM card with another Verizon certified device and then use it in Titan Slim. It proved to be effective by previous users of our products.
For AT&T users, there will be compatibility issues for some areas due to the carrier’s recent policy change. Please consult your carrier before purchase, or switch to other carriers such as T-Mobile or Verizon.

Battery life and performance

With its 4100mAh battery, this phone has very good battery life.

The performance is ok. I wouldn’t say that this phone is a screamer but for everyday normal tasks, the speed of opening and switching between apps felt fine to me.

What I like

  • Physical QWERTY keyboard for those who enjoy such things
  • Good fingerprint scanner
  • Multi-function side button

What I’d change

  • Make sure it will receive OS and security updates

Final thoughts

If you’re looking for a budget smartphone that will make your friends do a double-take, the Unihertz Titan Slim could be an entertaining choice. I had fun playing with it but I’m not ready to go back in time and I am more than happy to stick with my iPhone 🙂

The Unihertz Titan Slim campaign ends on 6/9/22 and they have already passed their funding goal of $50,000. You can pre-order a Unihertz Titan Slim starting at $230. After the Unihertz Titan Slim campaign ends, rewards are estimated to start shipping in September 2022. Visit their Kickstarter page for all the details.

Price: $230.00
Where to buy: Kickstarter
Source: The sample for this review was provided by Unihertz.

6 thoughts on “Unihertz Titan Slim smartphone review – What’s old is new again”

  1. Gadgeteer Comment Policy - Please read before commenting
  2. Never used either of these, but I prefer the form factor of the previous one, it’s more Blackberryish. And I really, really miss my Blackberry. But that screen ratio just doesn’t lend itself to modern apps, and they totally goofed up the keyboard with a shift key at the top. Doesn’t look like that’s been rectified, but you didn’t mention that it bothered you.

    Being basically a T-Mobile only device kills it, too.

  3. Stewart M Hunt

    When Unihertz’s first physical keyboard phone, the Titan, was introduced at the end of ’19 it came with Android 9. Starting sometime in ’20, the Titans came with Android 10 which is what I have. I have had my Titan for almost 6 months and the ONLY issue I have had is this:
    The proximity sensor opening on the front of the phone, in my case, has to be cleaned with alcohol and a Q-Tip about every 6 weeks. It takes about 30 seconds. You could probably wet the corner of a tissue and use that? You’ll know it’s sensor cleaning time when the phone rings and if you answer it or not, the screen goes dark. When it first starts to collect dust and this happens you can blow into the sensor to clear it and the screen lights up.
    If this is never corrected I’d still buy another Titan. I love the physical keyboard but then again, I love driving a stick shift.

    1. I’m still using my original Titan for over 2 years ever since it came out. I’ve enjoyed it way more than my Galaxy Note 9. I have the same problem with the proximity sensor. There is a way to calibrate it to make it less sensitive. Nevertheless it’s still my favorite phone of all time. I didn’t like my Titan Pocket as much because it’s way too small. Also I’ve used my Titan in the rain many times with no issues. I don’t think there is any other modern keyboard phone that is water resistant. Love my Titan and I hope they make a Titan 2. Or, the ultimate would be like a Samsung Galaxy Fold phone but a physical keyboard on the front hahaha

  4. Love their phones but disappointed in the lack of 5g and modern software. Also your site has too many intrusive ads and I hate that shit. Get paid, fine but the constant pop ups make your site suck and I’m gonna black list It after today’s visit.

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