I have found only two models comparable with the HP Spectre - 1. Lenovo Yoga 900 and 2. Dell Inspiron 13 7348.
Lenovo Yoga 900 has very sturdy case with quality design. In case of keyboard, it has the worst design and extremely hard to get used to. In that case you'd find that Dell and HP has much better keyboard. As far as display is concerned it is just 13.3'' just like HP Spectre. It has however quicker CPU performance with 2.5 GHz Core i5 processor. It has Intel HD Graphics 520 support. RAM of the machine is also much higher with the 8 GB DDR3 1066 MHz, Dual-channel slot for Core i7 model you have 16GB DDR3 RAM. So you get the best performance out of this machine. It is suitable for running heavy games and apps on the system.
Core i5 model costs : 72,500 Rs.
Core i7 model costs : 1,23,900 Rs
Dell Inspiron 13 7348 has typical dell style design but has very smooth edges. Keyboard of Dell is very comfortable to use. But the touchpad is very small compared to other two models. The model has the display size of around 13 inches like other models. It has 2.4 GHz Core i7-5500U processor that is very quick for gaming and the app development. The device comes shipped with 8 GB DDR3 slot which is good for the performance. It supports Intel HD Graphics 4400 on it's board. In terms of gaming performance it is very good machine but not as good as the Lenovo Yoga 900 considering the RAM is more in this case.
Core i5 model costs : 74 200 Rs.
Core i7 Model costs : 111,990 Rs.
I think if you want better performance then choose in between Lenovo Yoga 900 or Dell 13 7348. Depending on your budget, the laptop with i5 processor has better pricing, I'd suggest go with the Yoga 900 in that case.