HTC Inspire 4G, the smartphone offered by AT&T offers various features to give stiff competition to the Apple iPhone 4 and the HTC EVO Shift 4G. Here is a look at the smartphone comparisons.

The HTC Inspire 4G comes with a 4.3-inch S-LCD capacitive touch-screen 480 x 800 pixel display, relatively large for a smartphone. Apple iPhone 4 has a 3.5-inch LED-backlit IPS TFT capacitive touch-screen and is also bit smaller than the HTC EVO Shift 4G, which has 3.6-inch TFT capacitive touch-screen.

Operating System:
Apple iPhone 4 has the iOS 4 operating system whereas both HTC’s EVO Shift 4G and Inspire 4G come with Android 2.2 (Froyo).

The Inspire 4G boasts a 1GHz Scorpion Adreno 205 GPU and Qualcomm MSM8255 Snapdragon processor, compared to Apple iPhone 4’s 1 GHz Apple A4 processor and the HTC EVO Shift’s 800 MHz Scorpion Adreno 205 GPU Qualcomm MSM7630 Snapdragon chipset processor.

Input Features:
HTC Inspire 4G has input features similar to the HTC EVO Shift 4G, like an accelerometer sensor for auto-rotating the interface, proximity sensor for auto turn-off, multi-touch input method and HTC Sense UI. The HTC Sense cloud service has the capability of Friend Streaming for social networking, locking itself through remote access and can locate itself on a map and delete confidential data remotely.

Apple iPhone 4 also has multi-touch, an accelerometer sensor for auto-rotate, three-axis gyro sensor and proximity sensor for auto turn-off.

The Inspire 4G has 4 GB internal storage and comes with 768 MB RAM with support of microSD up to 32 GB and 8GB included. On the other hand HTC EVO Shift 4G comes with 512 MB RAM and 2048 MB ROM with up to 32 GB microSD support and 2 GB included. iPhone 4 comes with 16 and 32 GB storage along with 512 MB RAM. There is no card slot in Apple iPhone 4.

Apple iPhone 4 has 3G speed on HSDPA up to 7.2 Mbps and HSUPA up to 5.76 Mbps. Inspire 4G gives HSDPA up to 14.4 Mbps and HSUPA up to 5.76 Mbps whereas HTC EVO Shift 4G gives Rev. A up to 3.1 Mbps.

WLAN/ Bluetooth/ USB:
All the three smartphones will support Wi-Fi 802.11 b/g/n and uses USB version 2.0, but EVO Shift 4G has WiMAX 802.16 e (Wi-Fi router) support along with Bluetooth version 2.1 with A2DP while Inspire 4G supports DLNA along with Bluetooth version 2.1 with A2DP and EDR. Apple iPhone has Bluetooth version 2.1 with A2DP support.

Inspire 4G has huge 8-megapixel, 3264 x 2448 camera with autofocus, dual-LED flash, geo-tagging and face detection. The Apple iPhone 4 and HTC EVO Shift 4G come with 5-megapixel 2592 x 1944 pixel cameras and both have autofocus LED flash, geo-tagging and a secondary camera. But iPhone 4 also has touch focus, an extra feature. All of them can record video at 720p.

The HTC EVO Shift 4G leads with Li-Ion 1500 mAh compared to the iPhone 4’s Li-Po 1420mAh and the Inspire 4G’s Li-Ion 1230 mAh battery.

The Inspire 4G offers a standby time of 372 hours and a talk time of up to 6 hours. Apple iPhone 4 has a standby time of up to 300 hours on 3G and a talk time of up to 7 hours on 3G. The Evo Shift 4G offers a standby time of 146 hours and a talk time of 6 hours.

The Inspire 4G has a price tag of $99.95 with a two-year contract, well-priced for a phone with a lot of cool features. HTC EVO Shift 4G is priced at $149 with a two-year contract (minimum $79 per month). Apple iPhone 4 is priced at $199 for 16 GB and $299 for 32 GB.

The Inspire 4G is a complete entertainment smartphone. With 4G speed of 100 megabytes per second of download and streaming, the Inspire 4G is AT&T's first 4G smartphone which is ready to lock horns with Verizon’s Apple iPhone. Verizon is offering its 4G LTE network that’s based on the faster LTE standard but still falls short of the 4G protocol ideal.

Here is a look at Video Review of HTC Inspire 4G: