Model: Apple A1586 (iPhone 6) / A1524 (iPhone 6 Plus)
Processor: A8 chip with 64-bit architecture
Display: Retina HD display
4.7 inches / 1334 x 750 / 326 PPI (iPhone 6)
5.5 inches / 1920 x 1080 / 401 PPI (iPhone 6 Plus)
Cellular Bands:
CDMA EV-DO Rev. A and Rev. B (800, 1700/2100, 1900, 2100 MHz)
UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)
TD-SCDMA 1900 (F), 2000 (A)
GSM/EDGE (850, 900, 1800, 1900 MHz)
FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 13, 17, 18, 19, 20, 25, 26, 28, 29)
TD-LTE (Bands 38, 39, 40, 41)
Wireless:
802.11a/b/g/n/ac Wi-Fi
Bluetooth 4.0 wireless technology
NFC
Notes:
First Sprint Spark capable Apple Device
Sprint RRPP capable
No Sprint Band 41 Carrier Aggregation
Currently No Wi-Fi calling
Currently no Sprint VoLTE capabilities
No SVLTE (Spark devices don't support SVLTE)
And the Band 41 marches on...in the new iPhone 6 and iPhone 6 Plus for Sprint