There are 2 more Chinese brands 1. Xtrons (one model available at Sehgal Auto Shop) and another by the name of 2. Joying which I am not sure if available in Pakistan, both of these are being compared with Kenwood and other mainstream brands and have been given good reviews.
Sehgal has only advertised only one type of model for the Xtrons and there are other models offered by them with different type of features, it also is scalable accessories such as GPS, DABS+, TPMS, Engine information etc etc all sold separately as add ons (not sure if any of these are available at Sehgal,) also not sure if any technician at these auto part stores (including the one at Toyota dealership have the relevant knowledge and capability to hook these accessories into the vehicle.