The Yu Yureka is a particularly interesting device. It's manufactured by Micromax and is the first product of the partnership between Cyanogen and Micromax: the Yureka is the first product running Cyanogen OS with the Yu badge. The device appeared following the Cyanogen and Micromax deal giving Micromax the exclusive rights to Cyanogen OS in India (and so is seen as a part of the reason why Cyanogen and OnePlus fell out).
In regards to the Yureka, the device is affordable and has a very respectable specification set. It's powered by the Qualcomm Snapdragon 615, which is big.LITTLE architecture that combines a quad core, 64-bit Cortex-A53 processor clocked at up to 1.0 GHz with a similar quad core Cortex-A53 processor but designed with a higher clock speed, up to 1.7 GHz. This system-on-chip is backed up by the Adreno 405 GPU and 2 GB of memory. There's 16 GB of internal storage plus a MicroSD card, which supports cards of up to 64 GB. Around the back, there's a 13MP rear camera and There's a 720p resolution, 5.5-inch display protected by Gorilla Glass 3. There's a 2,500 mAh battery and Yu report that the device has been carefully optimized for battery life. As we've already written, the device runs Cyanogen OS and we have very recently covered that the device has been updated to version 12, which is based on Android 5.0 Lollipop. The cost of the device? Rs. 8,999, approximately $140.
However, actually buying the device has been quite difficult for customers. When Yu launched the device in December it was available in India via a flash sale. However, it is being placed on an open sale from the 6 May to the 7 May as an exclusive on Amazon India. Customers do not have to register in advance; it appears that the device is going on sale over these two days before the launch of the Yu Yuphoria on the 12 May. Still, many customers will have had to wait almost six months before being able to order the Yureka and this could have been quite the frustrating experience. We've seen a rumor that Yu will put the Yureka available for customers permanently once the new device arrives; this would be good news if it happened.