Hello. According to their specs the Mobicel Rush WINS in terms CPU speed and android version.
Mobicel Saphire
CPU 1.3 GHZ , Quad Core Processor
OS android 4.2.2
Camera Back 8MP + Front 2MP
Battery 1800mAh
Mobicel Rush
CPU 1.3 GHZ , Quad Core Processor
OS Andriod 6 Marshmallow
Camera Back 8MP + Front 2MP
Battery 2000mAh
Mobicel Ace
CPU Dual Core 1.2 GHz
OS Android 4.4 Kit Kat
Camera 5 MP back camera, VGA front camera
Battery 2000mAh