As known via online news that Jio 4G service can be availed unlimited for 3 months.

All you need to buy is Lyf handset from nearest Reliance digital , mini or mini express store.
Cheapest handset costs Rs.3999 along with free Jio 4G sim card (new number only no mnp for now) with unlimted 4G data, unlimited calls, unlimited sms and unlimited TV viewing free for 3 months from date of activation.
jio 4g news
Lets us have brief preview about few entry level LYF handsets available from Jio

Rs.4000 handsets have 3 option i.e. Lyf flame 3 or flame 4 or flame 6.
All three powered by Spreadtrum SC9830A processor 1.5GHz Quad-core A7 processor and Mali 400 MP2.
Flame 3 is aesthetically better out of three while flame 4 got 8GB internal(rest 2 4GB).
Ram is dismal 512MB in all three phones. Better buy these phone for hotspot only.

Next costlier handset is LyF Flame 2 priced at Rs.4800 powered by Mediatek MTK 6735M with MaliT720-Mp1 @ 450 MHz. Ram is 1Gb in this phone and one can use mediatek app in this handset to select the 4G band manually
which maybe beneficial in many ways if you are an serious internet user. Battery is 1500mAh.

Then we have flame 1, wind 6 and wind 4 priced at at Rs.5600, 6600 , 6800 resp.
All three powered by Qualcomm® Snapdradon™ 210 MSM8909 Quad-core 1.2GHz processor with Adreno 306.
Ram is 1GB and internal memory 8Gb for all three phones while Wind 4 got biggest 4000mAh battery.
Though these phones are costly in comparison to previous phones but are not recommended at all
as many users online are facing problems with these handsets thanks to outdated qualcomm processor.
I think this was first lot of handset sold to users under Jio invite preview offer where most of them are complaining about buggy handsets.

Handsets priced in water and earth series are all better in performance with fewer bugs. However overpriced(plus Rs.10k) in comparison to current handsets in market. Lyf water 5 is exclusively available via though not sure how to avail free sim card offer when buying online.

Still most of us are obviously buying these handsets for free data so better also include the free data cost in handset itself.

Leaving you with image of flyer used by many small outlets.

jio 4g 3month data offer lyf handset