Armor Pad 4 Ultra Thermal I The World's First 5G Thermal Rugged Tablet
What is the frequency bands of the Ulefone Armor Pad 4 Ultra?
5G: NR Sub6: N1/2/3/5/7/8/20/25/28/38/40/41/66/71/77/78/79
4G: LTE-FDD: B1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28A/28B/66/71
LTE-TDD: B34/38/39/40/41
3G: WCDMA: B1/2/4/5/6/8/19
2G: GSM: B2/3/5/8 CDMA: BC0/BC1/BC10
Which carriers is it compatible with?
Compatible with most carriers such as T-Mobile, Metro PCS, Mint Mobile and others.
Check compatibility with your local bands before purchase! (Not compatible with AT&T or Cricket)
What to do if your Armor Pad 4 Ultra can't work with your carrier?
You need to activate the SIM card on a existing phone which supports your carrier. After you receive the initial activation texts or get 4G signal, put the SIM card back into your Armor Pad 4 Ultra.
What to do if your Armor Pad 4 Ultra can't connect to network data?
Please input the APN parameters by manually, or you can contact with us on amazon to help you solve your issue.
How to activate the virtual 8GB memory expansion?
The Virtual Memory Expansion can be activated in Settings and adds up to 8GB of RAM. Some software may not be compatible with this feature.

Armor Pad 4 Ultra Thermal I The World's First 5G Thermal Rugged Tablet
Sound Kit sold separately!
Expansion devices sold separately!
What is the frequency bands of the Ulefone Armor Pad 4 Ultra?
5G: NR Sub6: N1/2/3/5/7/8/20/25/28/38/40/41/66/71/77/78/79
4G: LTE-FDD: B1/2/3/4/5/7/8/12/13/17/18/19/20/25/26/28A/28B/66/71
LTE-TDD: B34/38/39/40/41
3G: WCDMA: B1/2/4/5/6/8/19
2G: GSM: B2/3/5/8 CDMA: BC0/BC1/BC10
Which carriers is it compatible with?
Compatible with most carriers such as T-Mobile, Metro PCS, Mint Mobile and others.
Check compatibility with your local bands before purchase! (Not compatible with AT&T or Cricket)
What to do if your Armor Pad 4 Ultra can't work with your carrier?
You need to activate the SIM card on a existing phone which supports your carrier. After you receive the initial activation texts or get 4G signal, put the SIM card back into your Armor Pad 4 Ultra.
What to do if your Armor Pad 4 Ultra can't connect to network data?
Please input the APN parameters by manually, or you can contact with us on amazon to help you solve your issue.
How to activate the virtual 8GB memory expansion?
The Virtual Memory Expansion can be activated in Settings and adds up to 8GB of RAM. Some software may not be compatible with this feature.