I use a Samsung Galaxy Tab 7 lite 32GB 8.7" screen. Runs the latest Android OS, WiFi, Bluetooth ect. I've had no issue with connection to my Seestar that I set up in the garden and operate from my conservatory in the warm.
Available from Amazon...
Samsung Galaxy Tab A7 Lite SM-T220N 32 GB 22.1 cm (8.7") 3 GB Wi-Fi 5 (802.11ac) Silver https://amzn.eu/d/c5XLzC4