Yes, the one with all the useful data?

Teasing my friend you've mentioned your disappointment before.
I'm not bothered at all.
In fact, I really dislike every Bafang BBSxx series display except the old C965. I still use a C961when I can.
None of which are pretty.
I knew you were reaching for my chain..... I figure if I mention it enough, MAYBE the right somebody will get the message!
Regarding "superior functionality", like you, willing to learn/adapt. Please tell me what else would need to be displayed, AFTER initialy setting up. Much more available, but this is what you'll be looking at most of the time. In other words, info at a glance.
Bafang (color):
Color KT:
VGEBY Bike LCD Instrument Bicycle KT-LCD8H Intelligent Colorful Screen LCD Conversion Instrument : Sports & Outdoors
www.amazon.com
KT LCD (mono) exact battery voltage available with 2 clicks
Amazon.com : CSCbike Ebike Display, KT-LCD3 Control Panel Display for Electric Bicycel 36V 48V 60V 72V Universal Support Electric Bike Converts Accessories(36/48V, Waterproof Plug) : Sports & Outdoors
www.amazon.com
All 3 of these are compact displays, measuring about 2.5 x 4" (+/-)
Egg Rider - and let's keep it simple. I don't even own a smart phone
Nice, though a little compact, display -about 2x3". There could be some setup issues.
Personalize your ebike ride with EggRider V2 display
manual.eggrider.com
Grin CA-3
Granted, to fully utilize it's capabilities, a degree in electrical engineering would be nice. WAY over the top for most of us. If you look at the pictures it should be pretty easy to see. 2 lines of data, really? I couldn't find the actual dimensions, so big will have to suffice...
The Cycle Analyst V3 is Grin's all-in-one ebike display and control console: track volts, amps, speed and range, and add PAS, torque sensing, and power limits.
ebikes.ca
I do admit that my preferences may not be shared by all, but it should not take much to see the CA-3 DISPLAY is clearly/badly outdated as compared to others that are available. It needs updating badly to match the quality of the display up with it's capabilities. -Al