Mozilla Firefox start with the low-cost Firefox OS-powered smartphones.

Mozilla Firefox start with the low-cost Firefox OS-powered smartphones.

Mozilla has start with firefox OS with low cost ie $25, smartphone is mainly focused to smartphones to the large number of people who can't afford high-end models like Apple's iPhone 5S and Samsung's Galaxy S5 that cost hundreds of dollars.As Mozilla is working with chinese chip designer company which is not much more effect in compare with costly smartphone with abouse reasons.
Phones may seem small in size, less power capacity ,less feature compare to othere andriod and ios phone.
it includes such features:

Qualcomm MSM8210 Snapdragon, 1.2GHZ Dual core processor
4.5” screen (FWVGA 854×480 pixels)
Cameras: Rear: 5MP / Front: 2MP
3G UMTS quad-band (850/900/1900/2100)
8GB memory
256MB -1GB RAM (adjustable by developer)
A-GPS, NFC
Battery capacity: 1,800 mAh
Wi-fi: 802.11 b/g/n, Bluetooth, Micro USB

It is not sure that there will be large hit or not of this Mozilla step but one thing is clear that people who are unable to use high end smartphone can also have smartphone although there are lesss features.