Airtel Xstream box can be availed with Airtel black plan anytime or airtel 399 standby plan at time of installation. Jio fiber stb can be availed only while installation by ₹1000 extra in prepaid or any postpaid plan with 99 or 199 addon.

Airtel Xstream BoxJio Stb Box
Airtel Xstream box is a smart hybrid dth tv box which is full android based box with google play store. Jio Fiber STB is pure internet based streaming box with modified android where jio store is used to install apps.
The live tv channels are played using dish installed at rooftop + internet sometime for few channels.The live channels are played using OTT apps shortcuts
live channels can be changed via no & +- buttonlive channels can be played via channel no only but back need to pressed each time to exit channel. No +- button
OTT apps are unlimited via play storelimited apps via jio app store
Boot up time is longQuickest boot up time
switch between OTT apps is slowswitch between OTT apps is faster
channel can be subscribed via remote clickaddon bluetooth game controller, cam for video calls can be purchased for extra
3 app shortcut button on remote 4 app shortcut button on remote
bluetooth remote with universal buttonbluetooth remote with universal button

Hope you like this small and brief comparison.