Why release on such underpowered hardware?
Technical people/developers won't use this because the hardware quality is insulting (and the price is too low).
Non-technical people won't buy this because there are no apps (and the price is too high for a no-apps phone).
Who is the target market?
This: 4.5" 540x960 IPS screen, 32-bit ARMv7 CPU, 1GB RAM, 8GB flash, 8MP camera, no LTE, no 802.11ac, no NFC, no barometer - Pros: dual SIM, microSD slot (but only up to 32GB microSD cards?!?)
Galaxy S6: 5.1" 1440x2560 AMOLED screen, 64-bit ARMv8 CPU, 3GB RAM, 32-128GB flash, 16MP camera, LTE-A, 802.11ac, NFC, barometer - Cons: single SIM, no microSD slot