A SIM card is built into the phone, and you can choose different subscription plans to activate it. The rolling commitment costs £9.95 a month, and you’ll never have to worry about running out ...

The other side contains a built-in speaker and a SIM card slot. ... This kids smartwatch beats my Apple Watch — here’s why my 10-year-old and I love the JrTrack 4.

The key feature included with the O6L Pro is the software SIM, making it the first kids' smartwatch to offer this feature. Buyers get free unlimited 4G LTE services with the watch during its first ...