To get the most of the speed on your SMART connection, you need good SMART 4G apn settings. 
Best SMART LTE Apn Settings For Android
If you use an android device, then you need to follow this path in order to create new apn settings which will boost your internet speed.
Settings > More > Cellular/Mobile Network > Access Point Names > + (to add)
| Apn Settings Name | Apn Internet Settings |
| Name | SMART LTE |
| Apn | internet or smartlte |
| Proxy | not set |
| Port | not set |
| Username | not set |
| Password | not set |
| Server | not set |
| MMSC | not set |
| MMS proxy | not set |
| MMS port | not set |
| MCC | 515 |
| MNC | 03 |
| Authentication Type | PAP |
| Apn type | default |
| Apn protocol | Ipv4 |
| Apn roaming type | Ipv4 |
| Enable/disable apn | APN enabled |
| Bearer | Unspecified |
| MVNO type | none |
| MVNO value | not set |
Smart 4G APN Settings For iPhone
If you are an iPhone user just follow this path:
Settings > Cellular > Cellular Data Network > APN
Cellular Data:
| Cellular APN Name | Cellular APN Settings |
| APN | internet or smartlte |
| Username | Blank |
| Password | Blank |
LTE Setup (Optional):
| LTE APN Name | LTE APN Settings |
| APN | Blank |
| Username | Blank |
| Password | Blank |
MMS Data:
| MMS APN Name | MMS APN Settings |
| APN | internet or smartlte |
| Username | blank |
| Password | blank |
| MMSC | http://10.102.61.238:8002 |
| MMS Proxy | 10.102.61.46 |
| MMS Message Size | 1048576 |
| MMS UA Prof URL | blank |