yea that your phone is 4G enabled it does'nt give you the guarantee that it will work on all network or with all sim card.well let me make it clear to you,do you know that all 4G providers have thier different bands and freauency on which thier network work? so this is actually the main reason why am explaining this to you now so that you won't ever regret later when your 4G phone fails to work with certain spercific network.
well, i will like to advice you carefully check the actual specification of the phone you are about to buy or the current phone to find out the current 4G band support enabled.well sony LG make different variant of the same phone.actually they normally look alike in physically looking but have different features in real sense. let me say for example.galaxy s5 has up to five variants.these are variants usually supports different LTE bands across themselves.so you need to make sure that the variant you are buying has the support for the LTE band of your service provider.
meanwhile some phone producers like techno,infinix have a single variant. and those variants fully supports LTE band 20,7,3,1 they are most popular bands in asia,middle east and africa.
4G LTE BAND OF NTEL, MTN SPECTRANET,SMILE, AND GLO NETWORK.
1] Ntel uses band 3 [1800mhz] and band 8 [900mhz]
2] Spectranet and swift both uses band 40 [2300mhz]
3] Mtn uses band 7 [2600mhz] and 20 [800mhz]
4] Glo uses band 28 [700mhz]
5] Smile uses band 20 [800]
Also dont miss out this also read HOW TO ACTIVATE YOUR GLOBACOM 4G SERVICE
in other words, LTE bands are scattered across devices and networks. In conclusion, 4G LTE has different network transmission bands which includes 1,2,3,7,20,21,28 etc while some bands are well known among many smartphones, and also glo 4G band falls on band 28 which is sometime hard to find as over 80% of popular 4G phones in Africa and we'll known in Nigeria as it is don't support band 28 including Infinix Hot S.
