Have just received a shiny new Android 4.4.2 mobile, was hoping it would work on Spark but putting my wife's SIM card into it was a failure; man at the Spark store just said it is not compatible cos it doesn't do 850.

I gave this one a try as its specs are:

Networking WCDMA , GSM
Frequency 2G: GSM850/GSM900/DCS1800/PCS1900; 3G: WCDMA850MHz/2100MHz
Data Transfer GPRS , HSPA , EDGE

But it seems Sparkecom do not use WCDMA?


So my main question is, how do you determine if a phone is compatible with the Spark network before buying?