LG G3 vs. HTC One M8: Which smartphone is worthy of your investment and trust? Let's check the specs.

HTC One M8 has undergone OS updates - from Android 4.4 to Android 4.4.3. On top of this, it has HTC Sense 6 UI to make the OS more user-friendly. LG G3, on the other hand, has already been upgraded from Android 4.4.2 to the much-awaited Android 5.0 Lollipop.

HTC One M8 is a bit thinner than LG G3 so it is more comfortable to hold in one hand - 2.78 inches vs. 2.94 inches. They have the same height at 5.76 inches. In terms of weight, HTC One M8 is heavier by 11g as it weighs 160g, compared with LG G3's 149g.

LG G3 has bigger screen size than HTC One M8 - 5.5 inches vs. 5.0 inches. It also has higher display resolution - 1440 x 2560 pixels, compared with M8's 1080 x 1920 pixels. It follows that the LG phone has better pixel density at 538ppi, as opposed to the HTC handset's 441ppi.

LG G3 vs. HTC One M8: Both smartphones have light sensor and proximity sensor. G3 includes Oleophobic coating; M8 has none.

Both units have dual LED flash. G3 has 13-megapixel rear camera while HTC One M8 has 4-megapixel rear camera. However, M8 wins in its front-facing camera with 5 megapixels. G3 only has 2.1 megapixels.

LG G3 and HTC One M8 have the same system chip and graphics processor - Qualcomm Snapdragon 801 and Adreno 330. Both are equipped with quad core processor but they differ in clock rate: G3 is clocked at 2500 MHz while HTC One M8 is clocked at 2300 MHz.

In terms of system memory, G3 has bigger memory than M8 - 3072 MB RAM vs. 2048 MB RAM. These two smartphones are similar in built-in storage (32GB) and storage expansion - microSD, microSDHC, microSDXC up to 128 GB.

LG G3 vs. HTC One M8: With the head-to-head comparison above, which smartphone is a better buy?