4 bars on 3 router but 1.3mbps down

Hi, we have awful speeds through coper (rural) so went for a new contract with 3 (my phone indoors is good for 3 bars). Arrived today, router shows 4 out of 5 lights for signal but best I got today was 1.3mbps down.. 0.04 up.
Speedtest on phone just now says 4.40 down and weirdly 5.5 up
Can anyone suggest what's going on please?

Phone may be using one mast and router another mast or different frequency bands.

Location of router in property will be a big factor also.

Thanks for quick reply. Moved router around to best spot where 4, sometimes 5 signal lights showed, but speeds were slow wherever. Not sure what else I can do if router is getting best signal it can....? We live on a hill overlooking a town about 3km as crow flies where apparently there are plenty of masts. Tried looking on Mastdata site but that seems not to be working at present
Help!

Try Cellmapper site for masts, its crowd sourced, so depends on people in your area having run the app on an Android phone.

If you can look at the information from your router, see if you are on Band 20 (800 mhz) or Band 3 (1800 mhz).

How does the phone perform when put down, not held, at exactly the same spot as the router was a minute previously?

Just checked. Phone (not held) was getting 7.8 down in spot where router was showing 4 bars with 1.3 down.

Had the BT guy in today to investigate why it's been dropping out. He was getting 12 down on his Vodafone mobile and I've since called a couple of 'rural broadband' specialists both have said Vodafone is the most reliable. Plus my nearest mast is Vodafone with nothing between me and it, so have signed up with them. Fingers crossed.
Thanks for your replies

Edited by deleted (Tue 28-Apr-20 14:00:07)

So is the phone on one network and the router on another?

If so that likely explains the difference.

No, both on 3. I have cancelled the contract for the 3 router and signed up instead with Voda

Edited by deleted (Tue 28-Apr-20 15:18:28)

In reply to a post by MrSaffron:

So is the phone on one network and the router on another?
If so that likely explains the difference.

More likely the phone is much later on cellular 4G technologies than the phone.
Without model numbers of phone or router, cannot tell.

In reply to a post by Nsar1:

No, both on 3. I have cancelled the contract for the 3 router and signed up instead with Voda

Might be slower, might be faster. No way of knowing until you test. And things can change fast.

Radio systems are a lot more variable than fixed line.