It is super lightweight. The actual screen size is 2 and a half inches. I'm impressed that it's so functional despite its tiny size. It has all of the same functions as any other smartphone on the market. It operates with the play store and it's easy to download apps and navigation is simple.
I tested the phone out without a sim card and had no issues connecting to my home wifi. It works with GSM carriers and GSM SIM cards.
The downside I will say the screen is obviously small, it may be harder to work if you have larger hands. Kids can easily navigate with it and It was definitely worth the buy!!
One thing to keep in mind is that this is 3G only...not 4G or 5G compatible. However, it will work with a 2G, 3G, or 4G service, just not a 2G card. It's compatible with GSM carriers and GSM SIM cards.