Just for clarification purposes:
The display key I offer here has the following features:
- fully functional display, showing vital car data via communication module (separate part)
- can be charged via cable or inductive charging pad
- standby time with full charge is up to 100 days
- retains comfort access and saved car settings
- exact copy of your original key
- upgrade to remote start possible (complex, pricey and will require 1 original key to stay in car)
- 2G network capability for extended range
- metal case and high quality touchscreen
- English menu
- BMW logo closing button (not generic)
Here's a similar display, offered on AliExpress. Including shipping and customs fees, it's even more than $300! Therefore I source them in Europe, but the price is still in this range.
Please compare all the features before judging this type of key by the price. There are major differences.
€ 266,20 | Kostenloser Versand Aftermarket Display-Taste für BMW F Chassis Modell CAS4 CAS4 + ESW5 FEM BDC 315MHZ 433MHZ 868MHZ KEINE REMOTE-MOTOR STARTEN
https://a.aliexpress.com/_B05Wkq