VIXIA HF R20:
The image sensor of the VIXIA HF R20 has been upgraded to a 3.2-megapixel HD CMOS Video Lens and with 28x Advanced Zoom which finally record videos in the full 1920 x 1080 resolution and the image quality looks great as it is once again powered by the DIGIC DV Image Processor.
HDC-TM80R:
It uses the 1/5.8" CMOS sensor form the heart of the TM80 and 42x Intelligent Zoom to recorder friendly 1920 x 1080 high def format, but it offer a 33.7mm wide-angle lens which means the visual area can support amazing distance and extension.
2.Memory:
VIXIA HF R20:
8GB internal flash drive and 2 SDXC-compatible memory card slots, this allows we to record up to 3 hours of crisp high definition video to an 8GB internal flash drive or to two SDXC-compatible memory card slots.
HDC-TM80R:
16GB built-in memory and SDXC/SDHC/SD Memory Card Recording.
The Relay Recording mode automatically switches from the built-in flash memory (once it's full) to the SDXC/SDHC/SD Memory Card and continues recording.
3.Touch Technology:
VIXIA HF R20:
A sharp 230,000 dot LCD screen delivering brilliant color together with touch panel control for faster and easier menu navigation.
HDC-TM80R:
2.7" Wide LCD with Intuitive Touch Operation
The 6.7 cm/2.7" wide LCD screen allows intuitive fingertip touch-operation. When shooting, you can use Touch Zoom to instantly zoom in and out by simply touching your fingertips, and Touch Shutter to automatically focus when shooting still images by simply touching the subject on the screen. For playback, you can also change thumbnail pages by sliding a fingertip across the screen.
4.Video Quality
VIXIA HF R20:
It provides an Auto shoot mode as well as scene modes for more specific environments. The image stabilizer works great overall, except for close-ups. The lens provides a very clear image with only minor distortion. Low light performance is only okay.
HDC-TM80R:
May because the low CMOS reason, the best images were taken outdoors but even these had a the look you would get if you used a water-color plug-in in Photoshop; while in lower, indoor light settings (normal lighting), even with the camera light on, there is a dirty pattern that sits over the entire image.
Conclusion
From the key aspects above, we can get the simple impression that, on such a price level, Canon VIXIA HF R20 does better in video and image quality while Panasonic HDC-TM80R is more advanced in Touch Technology than Canon. Both they can record HD resolution video image as high as 1920 x 1080 and the memory difference is not so big and vital because they both support SD card. The left you can according your specific require to decide which one is more suitable for you.
Tip: the bundled software of VIXIA HF R20 and HDC-TM80R are both only compatible with Windows OS, if you are Mac users, you may need a AVCHD to Mac Conversion
