Version-1
4G LTE FDD:B1/B3(2100/1800MHz)3G WCDMA:B1(2100MHz)2G GSM:B1(2100MHz)Applicable to some countries in Asia, such as Thailand, Singapore, Indonesia, Cambodia, Myanmar, Philippines, etc.
Version-2
4G LTE FDD:B1/B3/B8(2100/1800/900MHz)4G LTE TDD:B38/B39/B40/B41(2600/1900/2300/2500MHz)3G WCDMA:B1/B8(2100/900MHz)2G GSM:B3/B8(1800/900MHz)
Applicable to most countries in Asia, such as Israel, South Korea, India, Kazakhstan, Sri Lanka, Thailand, Japan, Singapore, Indonesia, etc.
Version-3
4G LTE FDD:B1/B3/B7/B8/B20(2100/1800/2600/900/800MHz)4G LTE TDD:B38/B39/B40/B41(2600/1900/2300/2500MHz)3G WCDMA:B1/B8(2100/900MHz)2G GSM:B3/B8(1800/900MHZ)Applicable to all countries and regions in Europe, Asia, Africa, such as Russia, Spain, Poland, France, Italy, Netherlands, Sweden, Switzerland, Germany, Czech, Japan, Korea, Israel, India, Brazil, Nigeria, Ghana, Kenya, Egypt, Algeria, Australia, New Zealand, etc.