The Gemini PDA is a personal digital assistant designed by Planet Computers in association with Martin Riddiford, who formerly worked on the Psion Series 5 in the 1990s, and crowdfunded via Indiegogo in 2017. The Gemini bucks the trend of modern smartphones in its screen being primarily used in landscape aspect, and having a keyboard, i.e. taking on the form of a subnotebook.
Planet supports running two operating systems on the device, and it dual-boots between Android and Linux. Other possibilities include Sailfish OS.
Before January 2018, preproduction devices were made available to reviewers, and mass production began in December 2017, with devices starting to be despatched to Indiegogo backers in late January 2018.
Hardware CPU/GPU system on a chip is a MediaTek Deca Core Helio, either the X25 or X27 chipset. 2x Cortex A72 @ 2.6 GHz 4x Cortex A53 @ 2.0 GHz 4x Cortex A53 @ 1.6 GHz ARM Mali T880 MP4 @ 875 MHz RAM: 4 GB Flash: 64 GB microSDHC card slot Two USB-C connectors, only one of which can be used to charge it. Video out is possible with a proprietary HDMI adaptor, and not the standardised USB-C alternate mode. Display: 5.99" LCD, 2160×1080 (403 ppi, 2:1 aspect ratio) Mass: 320g Dimensions (mm): 171.4(W) × 79.3(D) × 15.1(H) Bluetooth: 4.1 Wi-Fi: 802.11a/b/g/n/ac Radio bands (4G variant): GSM 850/900/1800/1900 MHz CDMA 850/1900 MHz BC0 BC1+ EVDO UMTS 900/2100 MHz LTE 1/2/3/4/5/7/12/17/20/41 (with VoLTE) MicroSIM slot and eSIM (4G variant) Battery: 4220 mAh Front camera 5 MP GPS: with AGPS Sensors: Accelerometer, light sensor, gyro, magnetic sensor Audio: stereo speakers 3.5mm headphone jack dual microphonesTech Specs
Some early devices were made with the X25 SoC as specified in the Indiegogo campaign, with the factory switching to X27 as X25 stock was depleted. They also have the eSIM feature disabled.
Two variants are sold: one with Wi-Fi only, and one with Wi-Fi and a mobile phone radio.
Optional accessories
The original Indiegogo campaign allowed backers to pay extra for various accessories and features: Leather pouch HDMI adaptor Rear camera 5MP USB-C hub
Successors Planet Computers announced successor models to the Gemini, called the Cosmo Communicator and Astro Slide 5G Transformer, that share the same basic form factor. Cosmo Communicator is a dual nano-SIM 4G device, and Astro Slide 5G Transformer is a dual nano-SIM 5G device.
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