^ Camera                      ^           GH3          ^       G5       ^     GH2      ^
^ Sensor Max resolution       |     4608 x 3456        |   4608 x 3456   |  4606 x 3456  |
^ Other resolutions   |  4608x3072, 3264x2448, 2336x1752, 4608x3072, 3264x2176, 2336x1560, 4608x2592, 3264x1840, 1920x1080, 3456x3456, 2448x2448, 1744x1744, 1712x1712  |  3264x2448, 2336x1752, 4608x3072, 3264x2176, 2336x1560, 4608x2592, 3264x1840, 1920x1080, 3456x3456, 2448x2448, 1744x1744, 1712x1712  |  4752 x 3168, 4976 x 2800, 3520 x 1980, 3456 x 3456, 3360 x 2240, 3264 x 2448, 2448 x 2448, 2400 x 1600, 2336 x 1752, 1920 x 1280, 1920 x 1080, 1920 x 1440, 1744 x 1744, 1792 x 1792  |
^ Image ratio w:h |  1:1, 4:3, 3:2, 16:9  |  1:1, 4:3, 3:2, 16:9  |  1:1, 4:3, 3:2, 16:9  |
^ Video Resolutions  |  1920x1080 (60,50,30,25,24fps) \\ 1280 x 720 (60, 50, 30, 25fps) \\ 640 x 480 (30, 25fps)  |  1920x1080 (60,50,30,25fps) \\ 1280 x 720 (60, 50, 30, 25fps) \\ 640 x 480 (30, 25fps)  |  1920x1080 (60i,30p,24fps) \\ 1280x720 (60p,30fps) \\ 848x480 (30fps) \\ 640x480(30fps) \\ 320x240 (30fps)   |
^ ISO: Imaging \\ ISO: Video | **125**, 200..12800, **25600** \\ ..**6400** | 160..12800 \\ ..??| 160..12800 \\ ..3200 |
^ Orientation sensor |  Yes, 3 axis accelerometer  |  Yes, 3 axis accelerometer  |  No  |
^ Time Code  |  Motions images (except MP4) ON/OFF, \\ Count Up: Rec Run/Free Run selectable,\\ Time Code Mode: Drop frame/Non-drop frame selectable (NTSC only)  |  None  |  None  |  
^ Timelapse recording  |  Yes: start time, interval, #pictures  |  None  |  None  |
^ Fn Buttons  |  Add later  |  5 Fn buttons  |  Add later  |
^ Storage type  |  SD/SDHC/SDXC **(UHC-I)**  |  SD/SDHC/SDXC  |  SD/SDHC/SDXC  |
^ Battery Life (CIPA)  |  540  |  320  |  330  | 
^ Battery capacity  |  7.2V, 1860mAh  |  7.2V, 1200mAh  |  7.2V, 1200mAh  | 
^ Wireless   |  Integrated 802.11 b/g/n, 2412 MHz - 2462 MHz (11ch), W-iFi/WPA/WPA2, Infrastructure mode  |  Only via Eye-Fi  |  Only via Eye-Fi  |
^ Body protection  |  Spash and dust proof  |  None  |  None  |
^ HDMI  |  Mini HDMI Type C \\ Auto/**1080p**/1080i/480p(576p in PAL) \\ Audio: Dolby Digital Stereo Creator  |  mini HDMI Type C \\ Auto/**1080p**/1080i/480p(576p in PAL) \\ 8bit color depth, 4:2:0 (chroma subsampling)  |  mini HDMI TypeC  \\ Auto/1080i/720p/480p (576p in PAL)  \\ 8bit color depth, 4:2:0 (chroma subsampling)  |
^ Dimensions  |  133x93x82mm   |  120x83x71mm  |  124x90x76mm  |
^ Weight (inc. batteries)  |  550g  |  396g  | 442g  |

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New in GH3:
  * New image sensor; ISO 125 & 25600 for imaging and up to ISO 6400 for video
  * MOV (H.264) 50 Mbps (IPB) & 72 Mbps (ALL-I); linear-PCM Audio
  * +/-5EV control of exposure compensation
  * Image profile settings (contrast, saturation, sharpness and noise reduction) on a scale of -5 to +5 (against of -2 to +2 on the GH2)
  * support for Files Exceeding 4Gb
  * Variable Movie Mode (40%-300%)
  * Time Code, Time Lapse 
  * Uncompressed data stream to an external recorder via HDMI
  * φ3.5 mm MIC & Headphones
  * WiFi connectivity
  * Support UHS-I memory cards
  * OLED LCD & EVF