HTC is expected to release its next flagship smartphones, including the HTC Desire 10 Pro and the HTC Desire 10 Lifestyle, sometime next month.

A new list of specs has been revealed when both devices appeared in a GFXBench listing. Based on the leaked listings, the upcoming Desire 10 Pro will feature the Qualcomm Snapdragon 820 system on chip with an impressive quad-core 2.1 central processing unit. This could mean that the device will have high end features compared to the other products under the HTC Desire line.

Some of the devices' upcoming features are an Adreno 530 graphics processing unit, a choice of 32GB or 64 B of internal storage with 4GB of RAM.

The device will also reportedly come in a 5.1-inch display screen with 1,440 x 2,560- resolution. It will also come out with a 12MP primary camera on back and a 5MP secondary snapper on the front which can be used for selfies and video chats. It will also come out with the standard features, such as the accelerometer, GPS, Bluetooth, gyroscope, compass, NFC, pedometer, light sensor, proximity sensor, as well as WiFi features.

According to a report from PhoneArena, the upcoming device that is being described as "stylish and affordable" may cost around $150 up to $200 if purchased unlocked.

Other rumors claim that the device will have latest Android 6.0 Marshmallow operating system, but it may also be updated to Android's upcoming 7.0 Nougat upon launch. It is also expected to have a fingerprint sensor at the back.

Based on the specifications, the upcoming device could also be considered as the rumored Nexus Marlin. However, there are no confirmation about the reports as of the moment.

The HTC Desire 10 Pro and its lower-end cousin, the HTC Desire 10 Lifestyle, are rumored to be released sometime in September.