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Planet's Astro Slide Phone Adds Keyboard, Deletes Google

The latest keyboarded phone from Planet Computers works as both a standard slab-style device and as a mini-laptop. And it lets you run non-Google operating systems.

 & Sascha Segan Former Lead Analyst, Mobile

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The keyboard lives! While we wait for the upcoming 2021 BlackBerry smartphone, the keyboard aficionados at Planet Computers in the UK just showed us its first 5G entry, the Astro Slide 5G.

Once dominant, keyboarded smartphones kick around the edges of the industry now. Planet, formed from Psion PDA die-hards, has made a few. There's also FxTec's Pro1 and upcoming Pro1 X. Onward Mobility, which bought the license to the BlackBerry name, promises a keyboarded BlackBerry smartphone this year.

Typing on Astro Slide
The Astro Slide's ridged keys look fun to type on.

Planet has done a clamshell keyboarded phone before; the big UI innovation here is that this is the company's first phone that works just as well closed as it does open, with a big 2,340-by-1,080, 6.4-inch screen that slides up to reveal the keyboard.

One of the wildest features here is that the Astro Slide formally accepts Linux operating systems multi-booting with Android. This could really help folks who are trying to find a phone that isn't beholden to Google. Planet's default Linux approach is a Debian-based OS with the KDE desktop environment, and Planet says it's looking at Ubuntu, but app support is going to be pretty rough.

"We've seen quite a few people interested in a small, Linux-based device, primarily for security reasons," says Planet Computers CEO Janko Mrsic-Flogel.

The Astro Slide uses a MediaTek Dimensity 800 chipset. It has 8GB RAM, 128GB storage, a 3,500mAh battery, and Wi-Fi 5. I asked Mrsic-Flogel why Planet didn't use the Dimensity 1000, Mediatek's higher-end part, and he said MediaTek wouldn't "allow" it. That's weird wording, but I think the issue is that MediaTek has a minimum order for the 1000 that a small OEM like Planet couldn't fulfill.

48 MP camera on back
The phone has a 48-megapixel camera on the back.

On the back, there's a 48-megapixel camera; on the front is a 13-megapixel one.

Unusually, the phone has two USB-C ports as well as an HDMI-out, so it could be used with external keyboards, mice, and monitors.

For US consumers, the phone will work best on T-Mobile's 5G network or other 4G networks. In the US, it only supports 5G bands n41/n77, which are T-Mobile's mid-band and the upcoming C-band, but not the existing AT&T or Verizon "nationwide" 5G networks. On 4G it supports bands like b66 and b71, which are widely used by US carriers. The phone has two SIM slots (one 5G and one 4G), and an eSIM, a MicroSD card slot, and a 3.5mm headphone jack. (You can do these things when you're not trying to keep your phone thin.)

Mrsic-Flogel says Planet's phones are popular with IT people, because they make server management easy, but also writers, who just like physical keyboards.

Astro Slide closed
Closed, the Astro Slide looks and feels like a (thick) standard smartphone.

If the Astro Slide goes up against anything, it's the FxTec Pro1 X, which is coming out at roughly the same time for the same price. The Astro Slide looks considerably more powerful; the Pro1 X uses an old Qualcomm Snapdragon 835 chipset, has an older version of Android, lacks 5G, and its keyboard has smaller, shallower keys that look less fun to type on. On the other hand, the Pro1 X has more formal support for non-Google operating systems Lineage and Ubuntu.

The Astro Slide is currently being sold through Indiegogo, but I wouldn't consider this a traditional crowdsourced project. Planet has delivered several phones before and largely uses Indiegogo as an e-commerce and communications platform. It sells for $639 unlocked, and Planet says it's coming in March.

About Our Expert

Sascha Segan

Sascha Segan

Former Lead Analyst, Mobile

My Experience

I'm that 5G guy. I've actually been here for every "G." I reviewed well over a thousand products during 18 years working full-time at PCMag.com, including every generation of the iPhone and the Samsung Galaxy S. I also wrote a weekly newsletter, Fully Mobilized, where I obsessed about phones and networks.

My Areas of Expertise

  • US and Canadian mobile networks
  • Mobile phones released in the US
  • iPads, Android tablets, and ebook readers
  • Mobile hotspots
  • Big data features such as Fastest Mobile Networks and Best Work-From-Home Cities

The Technology I Use

Being cross-platform is critical for someone in my position. In the US, the mobile world is split pretty cleanly between iOS and Android. So I think it's really important to have Apple, Android and Windows devices all in my daily orbit.

I use a Lenovo ThinkPad Carbon X1 for work and a 2021 Apple MacBook Pro for personal use. My current phone is a Samsung Galaxy S21 Ultra, although I'm probably going to move to an Android foldable. Most of my writing is either in Microsoft OneNote or a free notepad app called Notepad++. Number crunching, which I do often for those big data stories, is via Microsoft Excel, DataGrip for MySQL, and Tableau.

In terms of apps and cloud services, I use both Google Drive and Microsoft OneDrive heavily, although I also have iCloud because of the three Macs and three iPads in our house. I subscribe to way too many streaming services. 

My primary tablet is a 12.9-inch, 2020-model Apple iPad Pro. When I want to read a book, I've got a 2018-model flat-front Amazon Kindle Paperwhite. My home smart speakers run Google Home, and I watch a TCL Roku TV. And Verizon Fios keeps me connected at home.

My first computer was an Atari 800 and my first cell phone was a Qualcomm Thin Phone. I still have very fond feelings about both of them.

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