Except for the AirPods that can be charged with AirPodPal wirelessly on wireless charger or wired charge with lightning connector inside AirPodPal. You can also use it to charge your phone with a C-C+Lightning cable which is available on Addon section.
Not at all. When you hold the AirPodPal in hand, you will find it super small as if holding your AirPods, reference images- https://imgur.com/a/zYvpkKQ?
And it can be easier to hold/find because of the grippy carbon fiber surface and metal belt clip behind.
There are two differences between AirPodPal Essential and Premium.
1, The AirPodPal Premium is enhanced with premium carbon fiber whilst the AirPodPal Essential is made from polycarbonate.
2, AirPodPal Premium is available in black/grey twill color whilst AirPodPal essential is available in white/blue/green/yellow/pink.
Don't see the answer to your question? Ask the project creator directly.