HTC One X9 comes with a 5.50-inch touchscreen display with a resolution of 1080 pixels by 1920 pixels at a PPI of 401 pixels per inch.

The HTC One X9 is powered by octa-core MediaTek Helio X10 processor and it comes with 3GB of RAM. The phone packs 32GB of internal storage that can be expanded up to 2000GB via a microSD card. As far as the cameras are concerned, the HTC One X9 packs a 13-megapixel primary camera on the rear and a 5-megapixel front shooter for selfies.

The HTC One X9 runs Android 6.0 and is powered by a 3000mAh non removable battery. It measures 153.90 x 75.90 x 7.90 (height x width x thickness) and weighs 170.00 grams.

The HTC One X9 is a dual SIM (GSM and GSM) smartphone that accepts two Nano-SIM. Connectivity options include Wi-Fi, GPS, Bluetooth, 3G, 4G (with support for Band 40 used by some LTE networks in India). Sensors on the phone include Proximity sensor, Ambient light sensor, Accelerometer, and Gyroscope.