So, I use reading glasses. The MI Band 2 is hard to see at times. In the middle of the night and while driving, the notification will go away before I can focus.
According to Gadgetbridge, the Amazfit Cor uses the same "OS" as the MI, so I picked one up. I can definitely read the display.
Added bonus, you can go to the notification screen and review the past 10 messages, which is nice since the MI just erases them after 2 seconds.