Is cell signal quality and the placement of the Network Antenna?

The 2020 SE is based on the iPhone 8 frame and antennas.

The original SE and the newer 2020 model use the same antenna design. The frame band is in fact four segments! If you look carefully you can see the breaks in the SE teardown (white gaps) and in the 2020 version the plastic is color matched! The top and bottom bands are the cellular antennas.

• iPhone SE の分解
• iPhone SE 2020の分解

So from this perspective the only issue is the carriers cellular frequency bands available in your area and the ones the given phone supports. If you bought a Verizon iPhone you should be fine. But don’t you want something better than stand near a window??

So what to do??

Do you have cable internet? If you do you can now leverage it with many of the providers. Basically, you are using the phones WiFi connection to your WiFi router to then do a VoIP connection to your providers gateway to then connect to the person who you are calling or are calling you! Here’s the info on Verizon Wi-Fi Calling

I have WiFi calling with T-Mobile and its great! Even my Apple Watch which has a very limited antenna works quite well.

Nope you should be fine if not better because of the new antenna technology!