The eSIM for Tanzania provides you with access to 1 to 20 GB in Tanzania, without physically changing the SIM card in your phone.
All you need is an eSIM compatible mobile handset (iOS, android or otherwise).
In order to purchase the eSIM, just complete the transaction here and an eSIM QR code will be emailed to you in the next 30 minutes with instructions to install on your phone.
Once installed, you can start using data on the eSIM in Tanzania immediately. The validity of the plan starts once the eSIM is installed on the phone.