1. i'm living in a 1000+- sqft apartment with 3 rooms and 3 households.
2. currently on a 100mbps fibre internet (100 down 50 up).
3. i can get at least 4 out of 5 signal bars on my devices at the corner of my house.
4. currently receiving internet speeds of 95+-mbps when connected to my 2x E4, but when I disconnect my E4s and only use the main router I received from the fibre internet telco company, I can get a speed of 100mbps.
5. my 2x E4 is located in between of the start and the end of the corridor connecting all the rooms which is located in the middle of the house and it is fully wired backhaul.
6. connected devices such as smart tv, xbox, google chromecast, 2 pc (1 pc quite heavy downloading and online gaming), 3 laptops, 4 phones, 3 smartwatches.
7. currently using 2x devices of E4 and planning to upgrade to either X20 or X50.
8. Might be planning to upgrade to a maximum of 500mbps fibre internet, or a 5g home internet in the near future as I might be moving to a new house next year.

1. is 1x X20 enough to cover the average coverage of 2x E4? or should I get 2x X20? ( could save approx 74usd)
2. is 1x X50 enough to cover the average coverage of 2x E4? or should I still get 2x X50? (I could save approx 90usd)
3. is it more financially efficient for me to get 1x X50 compared to 2x X20 and not lose? (I could save approx 29usd)
4. as I found the cheapest prices in Malaysia are as follows:
   1. 1x X20 MYR365 (approx 83USD)
   2. 2x X20 MYR689 (approx 156USD)
   3. 1x X50 MYR459 (approx 104USD)
   4. 2x X50 MYR879 (approx 199USD)
5. and I bought my 2x E4 at MYR275 (approx 65USD) in july 2021.

thank you in advance to anyone for the suggestions and reccomendations