Phone carriers in Europe use the GSM system while phone carriers in the United States generally use the CDMA system. This means that your phone might not have a SIM card that determines the service; your phone comes with the carrier set-up for you. This can make it harder to use your smartphone in Europe without. All cell providers apart from Verizon and Sprint use GSM, and GSM is the technology that allows you to unlock your phone and use it abroad. If you have a Verizon iPhone, you'll have two SIM card slots in your phone—one for CDMA use and one for GSM use, so you'll also be able to unlock your phone and use it overseas.

Albania

FaceTime over Cellular¹
LTE
Personal Hotspot²
Unlocking²

FaceTime over cellular¹
Personal Hotspot²
VoLTE
Wi-Fi Calling

Andorra

FaceTime over Cellular¹
LTE
Personal Hotspot²

Austria

5G
eSIM
FaceTime over Cellular¹
LTE
Personal Hotspot²
Unlocking²
Visual Voicemail
VoLTE
VoWiFi

5G
FaceTime over Cellular¹
LTE
Personal Hotspot²
Visual Voicemail
VoLTE⁵
Wi-Fi Calling

5G
eSIM
FaceTime over Cellular¹
LTE
Personal Hotspot²
Unlocking²
Visual Voicemail
VoLTE⁵
Wi-Fi Calling

Azerbaijan

FaceTime over Cellular¹
Personal Hotspot²

Belarus

FaceTime over Cellular

FaceTime over Cellular¹
Personal Hotspot²

Belgium

Advanced Mobile Location (AML)⁷
FaceTime over Cellular¹
LTE
Personal Hotspot²
Visual Voicemail

Advanced Mobile Location (AML)⁷
FaceTime over Cellular¹
LTE
Personal Hotspot²
Visual Voicemail
VoLTE
Wi-Fi Calling

5G
Advanced Mobile Location (AML)⁷
FaceTime over Cellular¹
LTE
Personal Hotspot²
VoLTE⁵

Advanced Mobile Location (AML)⁷
FaceTime over Cellular¹
LTE
Personal Hotspot²
VoLTE
Wi-Fi Calling

Bosnia Herzegovina

Blicnet³

FaceTime over Cellular¹
Personal Hotspot

FaceTime over Cellular¹
Personal Hotspot²

Bulgaria

FaceTime over Cellular¹
LTE
Personal Hotspot²

FaceTime over Cellular¹
LTE
Personal Hotspot²

Croatia

Hrvatski Telekom³

5G
Advanced Mobile Location (AML)⁷
eSIM
FaceTime over Cellular¹
LTE
Personal Hotspot²
Unlocking²
Visual Voicemail
VoLTE

FaceTime over Cellular¹
LTE
Personal Hotspot²

Cyprus

FaceTime over Cellular¹
LTE
Personal Hotspot²

FaceTime over Cellular¹
LTE
Personal Hotspot²

FaceTime over Cellular¹
LTE
Personal Hotspot²

Czech Republic

O2³

5G
FaceTime over Cellular¹
LTE
Personal Hotspot²
VoLTE⁵

T-Mobile³

5G
eSIM
FaceTime over Cellular¹
LTE
Personal Hotspot²
Visual Voicemail
VoLTE⁵
Wi-Fi Calling

Vodafone³

5G
eSIM
FaceTime over Cellular¹
LTE
Personal Hotspot²
VoLTE⁵
Wi-Fi Calling

Denmark

3³

5G
Advanced Mobile Location (AML)⁷
eSIM
FaceTime over Cellular¹
LTE
Personal Hotspot²
Unlocking²
Visual Voicemail
VoLTE
Wi-Fi Calling

TDC³

5G
Advanced Mobile Location (AML)⁷
FaceTime over Cellular¹
LTE
Personal Hotspot²
Wi-Fi Calling
VoLTE

Telenor³

Advanced Mobile Location (AML)⁷
FaceTime over Cellular¹
LTE
Personal Hotspot²
VoLTE⁵
Wi-Fi Calling

Telia³

Advanced Mobile Location (AML)⁷
FaceTime over Cellular¹
LTE
Personal Hotspot²
VoLTE
Wi-Fi Calling

Estonia

Advanced Mobile Location (AML)⁷
FaceTime over Cellular¹
LTE
Personal Hotspot²

Advanced Mobile Location (AML)⁷
FaceTime over Cellular¹
LTE
Personal Hotspot²

Telia Eesti AS³

Advanced Mobile Location (AML)⁷
eSIM
FaceTime over Cellular¹
LTE
Personal Hotspot
Unlocking²
VoLTE⁵

Finland

DNA³

5G
Advanced Mobile Location (AML)7
FaceTime over Cellular¹
LTE
Personal Hotspot²

Elisa³

5G
Advanced Mobile Location (AML)7
FaceTime over Cellular¹
LTE
Personal Hotspot²

Saunalahti³

Advanced Mobile Location (AML)7
FaceTime over Cellular¹
LTE
Personal Hotspot²

Telia³

5G
Advanced Mobile Location (AML)7
eSIM
FaceTime over Cellular¹
LTE
Personal Hotspot²

France

FaceTime over Cellular¹
LTE
Personal Hotspot²
Unlocking²
Visual Voicemail
VoLTE⁵
Wi-Fi Calling

FaceTime over Cellular¹
LTE
Personal Hotspot²
Visual Voicemail

FaceTime over Cellular¹
LTE
Personal Hotspot²
Unlocking²

FaceTime over Cellular¹
LTE
Personal Hotspot²
Unlocking2
Visual Voicemail

FaceTime over Cellular¹
LTE
Personal Hotspot²
Unlocking²
Visual Voicemail
VoLTE⁵
Wi-Fi Calling

FaceTime over Cellular¹
LTE
Personal Hotspot²
Unlocking²
Visual Voicemail
VoLTE⁵
Wi-Fi Calling

Germany

FaceTime over Cellular¹
Personal Hotspot²
LTE
Visual Voicemail

5G
Advanced Mobile Location (AML)7
eSIM
FaceTime over Cellular¹
Personal Hotspot²
LTE
Visual Voicema

How To Use Unlocked Iphone In Europe