Samsung Shp 708 digital lock installed onto a landed property main door by My Digital Lock 

The most expensive Korea Digital Lock in Singapore 2019

The 2019 latest Wi-Fi Smartphone Digital lock by Samsung selling at $1240 (U.P. $1380)
The most expensive digital lock in Singapore
Five Greatest Features 
1. Mechanical Keys x2 
2. Unlock using Wi-Fi
3. 100 fingerprint 
4.. Password
Mobile app Features 
A) Time attendance 
B,) Invite guest give guest code
Able to delete individual fingerprint and card 
.
With 1+2 years warranty
Now you can unlock using 4G smartphone with