Network & speed
Japan: SoftBank / KDDI, South Korea: LG U+ / SK Telecom, Thailand: TrueMove H / Dtac, Taiwan: Chunghwa Telecom, Mainland China: China Mobile, Singapore: Singtel, Vietnam: Vinaphone / Viettel, Macau: CTM, Malaysia: Celcom / DiGi. 4G LTE / 5G, depending on the device and local network coverage.