You might have the question\u00a0Are BLU Phones GSM or CDMA? We have the answers to that here. So, you have arrived here searching for the answers to a question - Are BLU Phones GSM? Believe me, you have come to the right place because I, Yogesh Khetani, have been running this blog on BLU Cell Phones since a long time now and better under communication technology. I have also got a graduate degree in Electronics and Communication(B.E). Ok, enough of my introduction, let's get straight on the question - Are BLU phones GSM or only CDMA? BLU Products, a Florida, USA based company that manufactures unlocked smartphones for sale in the United States, Canada, India and United Kingdom. BLU Android phones support GSM bands with 4G LTE (1\/2\/3\/4\/7\/12\/17\/28 bands), including a 3G network with 850\/900\/1700\/1900\/2100 in the United States. All the BLU Phones are compatibility nationwide on all GSM Networks including AT&T, T-Mobile, Cricket Wireless, Metro PCS, Straight Talk, and other mobile networks. Type of Bands Frequencies 2G Bands GSM 850 MHz\/ 900 MHz \/ 1800 MHz \/ 1900 MHz 3G Bands HSDPA 850 MHz\/ 900 MHz \/ 1700 MHz (AWS) \/ 1900 MHz \/ 2100 MHz 4G Bands LTE band 1(2100 MHz), 2(1900 MHz), 3(1800 MHz), 4(1700 MHz\/2100 MHz), 7(2600 MHz), 12(700 MHz), 17(700 MHz), 28(700 MHz) Speed HSPA 42.2\/11.5 Mbps, LTE Cat 4 150\/50 MBPS BLU Phone Warranty All the BLU Phones comes with GSM networks. That doesn't mean that BLU Products doesn't come with CDMA smartphones. Given that CDMA network is off of less popularity, BLU also launched BLU S1 smartphone that comes with CDMA bands supports. Basically, the BLU CDMA phones come with - 4G LTE CDMA:(BC0\/BC1\/BC10) WCDMA:(B1\/B2\/B4\/B5\/B8) FDD:LTE band 2(1900), 3(1800), 4(1700\/2100), 5(850), 7(2600), 12(700), 17(700), 25(1900), 26(850), 41(2500) TDD:(B41) GSM QuadBand Also Read: BLU Phones 2019 The BLU Products CDMA phone are with US compatibility with AT&T, T-Mobile, Sprint and Boost Mobile. Do let us know your view about it and\u00a0subscribe to our push notifications,\u00a0Like us Facebook, join\u00a0our Facebook Group\u00a0for any Questions\/Answers and email updates and also Subscribe to\u00a0our YouTube channel.