Mobitel introduced new Postpaid ( Bill Connection ) Data package Unlimited Data for LKR 2999 + tax . to obtain connection you have to pay 2000 Rupees ( 1000 for Refundable deposit + 1000 as Connection fees ). Mobitel Said in their website download speed is considarable and able to watch .Videos BUT check below article
What is the Download speed & FUP Usage
i have asked hotline , FB comment on their page ! they not said how much is the speed !!! they said blah blah blah not related my question ! so I ego to test the speed , i bought a connection for testing . its cost 2000 LKR , I have tested on 3G Network , (because my area has 4G full signal but speed (2Mbps .) vert slow than 3G i have complaint but no response !!!)
I personally not prefer mobitel data because its NOT STABLE connection !!!
its Speed about 14Mbps(3G) before FUP . when data usage about 2250 MB ,I have got SMS. its attached below

Notification Alert for 750 MB warning message
After 3GB usage i got another SMS . BUT in their website they mention 1.5GB FUP apply that not truth … its 3GB

message alert mobitel data blaster
after the FUB applied. i have checked the speed it very slow its about
Download 1Mbps ( 128KBps )
Upload speed about 2Mbps (250KBps)

Download speed Unlimited Master data sim
Is it really Unlimited ?
BUT slow Down after FUP applied , after use of 3GB anytime data data, connection slow down to 128KBps
Disadvantage of this Data sim
- you cannot use this sim in Dongle / wingle / Wifi routers . Only support Mobile phones.
- after 3GB usage FUP applied . connection slow down to 128KBps.
- Unable to share data with Hotspot.
How much DATA can be downloaded in a day ?
lets consider 3GB can be download in hour
lets consider average speed per second about 100KB (I have checked speed around 128KBps )
so per Hour 100KB X 60 X 60 = 360 000 KB = 360MB
if a person use 24 Hours Data browsing 1 Hour 3GB + 23 hours with speed of 100KB
=3GB ( without FUB )+ 23 X 360MB
= 3GB + 8.2GB
= 11GB can be downloaded if a person use 24 Hours continuously
BUT its not possible lets say a person use around 5 hours browsing
3GB + 5X 360MB
= 4.8GB around 5GB can be use if a person browsing avarage 5 hours in a day
Conclusion
This package not worth to buying for the rent 2999+ tax = its around LKR 3600 /=
without FUB 3GB X 30 days = 90GB can be used for normal speed.
cannot be use Hotspot ( i have tested on Nokia 88104G & iPhone 7 , both not working data share via hotspot )
Mobitel giving you fake promise ! you cannot watch 720P video without buffering after FUP !