The Wiko Sunny 5 is an ultra-budget Android Go phone (Android 10 or 11 Go edition). It has 1GB RAM, 32GB storage, and a 6.1” display. Firmware updates are rare and mostly security patches.
I couldn’t find a specific “Solid Review” for the firmware, as that’s a very narrow technical topic. However, here’s a practical breakdown based on general user feedback and technical specs for this device.