Dual band wifi range extender ( also called wifi signal booster) can boost both 2.4ghz wifi & 5ghz wifi signals from original source. OR you can connect to original 2.4ghz signal and extend wifi range to 5ghz network OR vice versa that is connect using 5ghz wifi and extend signal to 2.4ghz wifi network.
Dual Band wifi signal booster are a little costlier than single band wifi booster however they perform way better than a single band wifi range extender. Infact I wouldn’t recommend single band n wifi booster to anyone unless you live in rural areas near woods where next house far away.
Here is the list of Dual Band Wifi Boosters/Range Extenders available in India ……
Mercusys ME30 AC1200 Singal Booster more info
Tp-Link AC750 RE200 Signal Booster more info
TP-Link Ac1750 Range Extender RE450 more info
Tp-Link AC1200 Dual Band Repeater RE300 more info
Tp-Link AC1200 Wifi Extender RE305 more info
Netgear AC1750 wifi booster EX6250 more info
Netgear AC1200 wifi repeater EX6110 more info
Single Band wifi range extenders just for comparison.
- Mercusys MW300RE N300 range extender more info
- D-Link DAP-1325 N300 Wifi Range Extender more info
- Tp-Link TL-WA855RE N300 range extender more info
- TP-Link TL-WA850RE N300 wifi range extender with ethernet port more info
If you have a big multi floor house and need wifi coverage at every end of the house then do have a look at mesh routers in India.