AT & T 's network is faster , while Verizon 's is more reliable with phone calls . Comment: The Verizon iPhone had a 10 % better success rate when uploading data when sitting still .
AT & T 's network is faster , while Verizon 's is more reliable with phone calls . The AT & T iPhone 's download speeds are about double the speed of Verizon 's . The Verizon iPhone had a 10 % better success rate when uploading data when sitting still .