Nokia
Nokia Lumia 630 Dual SIM
Sony
Sony Xperia T3

Samsung
Samsung Galaxy Star Plus S7262

Features
Microsoft Windows Phone 8.1, Yes, Yes, Qualcomm Snapdragon 400 Quad-core 1.2 GHz Cortex-A7, Yes, Yes, SMS (threaded view), MMS, Email, Push Email, IM
Android OS, v4.4.2 (KitKat), Yes, Yes, Qualcomm MSM8928-2 Snapdragon 400 (D5103/D5106)/ Qualcomm MSM8228 (D5102) Quad-core 1.4 GHz Cortex-A7, Yes, Yes, Yes, SMS (threaded view), MMS, Email, IM, Push Email
Android OS, v4.1.2 (Jelly Bean), Yes, Yes, 1 GHz Cortex-A5, Yes, Yes, Yes, SMS (threaded view), MMS, Email, Push Email, IM
Memory
MicroSD, up to 128GB, 8 GB, 512 MB RAM
Micro SD, up to 32 GB, 8 GB storage, 1 GB RAM
Micro SD, up to 32 GB, 512 MB RAM, 4 GB internal storage
Display
IPS LCD capacitive touchscreen, 480 x 854 pixels, 4.5 inches (~218 ppi pixel density), 16 M colors
IPS LCD capacitive touchscreen, 720 x 1280 pixels, 5.3 inches (~277 ppi pixel density), 16 M colors
TFT capacitive touchscreen, 480 x 800 pixels, 4.0 inches (~233 ppi pixel density), 16 M colors