I had personally prefer jioFi m2 device because of two things battery and speed.
I’ve almost always seen the data speeds to be better through these dongles than on the smartphone directly. That is the case even with the JioFi 2 device, which although isn’t much better but the significant difference is always there.
The difference is more when you place the JioFi device outdoors, and at times, we could notice the shared Internet from this dongle getting the download speeds of up to 30 Mbps while it gets to 21 Mbps on the LYF phone that we were using along. But at indoor conditions, even though it still gives better speeds, the difference is lesser. Nevertheless, you are sharing the data with several devices around, so that’s always an advantage.
jiofi features -
Portable 4G MiFi ( Mobile WiFi) device
Support Jio 4G bands 3, 5, 40
LTE Cat 4VoLTE supported
MiFiMax 31 device support
Support 32GB MicroSD card
2300mAh Battery
6 Hours battery backup
Red, Blue and Black in color