Garmin eTrex 20x vs 30x

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A comparison chart between Garmin eTrex 20x and 30x Handhelds GPS .

Note: This comparison by GPSCompared is a basic guide based on Garmin published specifications and features at their official website. And by no means that this comparison is definitive. There might be other similarities and differences which are not covered here.

Garmin Handhelds GPS
Garmin eTrex 20xGarmin eTrex 30x
Garmin eTrex 20x
Garmin eTrex 20x
Garmin eTrex 30x
Garmin eTrex 30x
Introduction DateGarmineTex 20x was announced by Garmin on May 13, 2015GarmineTex 30x was announced by Garmin on May 13, 2015
View the model availability and the current price at AmazonGarmin eTrex 20x at AmazonGarmin eTrex 30x at Amazon
What's Difference
Physical & Performance
Barometric altimeterNoYes
Electronic compassNoYes
Unit-to-unit transfer (shares data wirelessly with similar units)NoYes
What's Common
Physical & Performance
Physical dimensions2.1" x 4.0" x 1.3" (5.4 x 10.3 x 3.3 cm)2.1" x 4.0" x 1.3" (5.4 x 10.3 x 3.3 cm)
Display size, WxH1.4" x 1.7" (3.5 x 4.4 cm); 2.2" diag (5.6 cm)1.4" x 1.7" (3.5 x 4.4 cm); 2.2" diag (5.6 cm)
Display resolution, WxH240 x 320 pixels240 x 320 pixels
Display type2.2" transflective, 65K color TFT2.2" transflective, 65K color TFT
Weight5 oz (141.7 g) with batteries5 oz (141.7 g) with batteries
Battery2 AA batteries (not included); NiMH or Lithium recommended2 AA batteries (not included); NiMH or Lithium recommended
Battery life25 hours25 hours
Water ratingIPX7IPX7
High-sensitivity receiverYesYes
Maps & Memory
Ability to add mapsYesYes
Built-in memory3.7GB3.7GB
Accepts data cardsmicroSD™ card (not included)microSD™ card (not included)
Custom POIs (ability to add additional points of interest)YesYes
Waypoints/ favorites/ locations20002000
Track log10,000 points, 200 saved tracks10,000 points, 200 saved tracks
Outdoor Features
Automatic routing (turn by turn routing on roads)Yes (with optional mapping for detailed roads)Yes (with optional mapping for detailed roads)
Geocaching-friendlyYes (Paperless)Yes (Paperless)
Custom maps compatibleYesYes
Sun and moon informationYesYes
Tide tablesYes (with optional Bluechart)Yes (with optional Bluechart)
Area calculationYesYes
Picture viewerYesYes
Garmin Connect™
Garmin Connect™ compatible (online community where you analyze, categorize and share data)YesYes
Official Specs and Features
Learn more from the manufacturer site.Read more about Garmin eTrex 20x at garmin.comRead more about Garmin eTrex 30x at
Amazon's Customer Reviews
inclusive of the most helpful favorable review and the most helpful critical reviewClick here to read the reviews on Garmin eTrex 20xClick here to read the reviews on Garmin eTrex 30x
Where To Buy
View product availability and current price at AmazonGarmin eTrex 20x at AmazonGarmin eTrex 30x at Amazon


Garmin eTrex series is filled with handheld GPS-enabled devices primarily designed for hiking or geocaching activities, although some of them are multipurpose and usable for other outdoor sports.

Garmin eTrex 20x and eTrex 30x are both basically the same devices compared to their predecessors (eTrex 20 and 30). Design, interface, and software remain more or less the same, but the upgraded versions have better screen specification.

The previous and upgraded versions have the same 2.2-inch screen, but the latter devices now bring 240 x 320 pixels resolution. Another important upgrade is the internal memory capacity from the previous 1.7GB to 3.7GB for storing more mapping data. They are compatible with BlueChart g2, BirdsEye Satellite Imagery, and TOPO 24k.

Garmin eTrex 20x

Mainly designed for geocaches data management including storing, editing, and sharing it, the eTrex 20x also supports other outdoor activities such as cycling and fishing thanks to its compatibility with more maps for marine-based and even road navigation.

The main benefit from this device is paperless geocaching because such data is now available and accessible in digital format. All essential information stored in geocaches including terrain, location, difficulty, descriptions, and hints can be downloaded and viewed directly on the device.

It is no longer necessary to write down information and coordinates on paper. Garmin eTrex 20x supports GPX file which can be easily downloaded and stored in the device’s memory.

There is even an option to filter caches based on terrain, size, difficulty, etc. Every GPX file can be downloaded from website.

Garmin eTrex 20x is one of few consumer-grade receivers to support both GPS and GLONASS satellite networks; both can work at the same time.

For hikers who often find themselves in challenging terrain that it gets difficult to acquire GPS-based location acquisition, GLONASS adds 24 more satellites to make sure a faster lock-on and better coverage in more areas than using GPS network only.

HotFix satellite prediction and a WAAS-enabled receiver also help to lock on position and maintain connectivity in a heavily covered area. On average, GPS and GLONASS acquire position 20 percent faster compared to GPS-only.

Garmin eTrex 20x also allows you to manage three geocache data including waypoints, tracks, and routes. When handling waypoints, you can configure their average locations and even reposition a waypoint from wherever you are.

For tracks, it is possible to view an elevation plot and show multiple tracks on the map. You can assign a custom color to every visible track, including the active one, for better readability.

Editing and reversing a route is also easy on this device. The compatible additional maps include BlueChart g2 and City Navigator NT so the eTrex 20x will deliver road navigation as if it is a car GPS. BirdsEye Satellite Imagery is also supported, but it requires subscription to download and integrate with the existing maps on the device.

Garmin eTrex 30x

All features found in the eTrex 20x are available on the eTrex 30x. Everything else is the same including the device physical dimension, screen size, screen resolution, compatibility with additional maps, and memory capacity.

There are, however, three things exclusive to the eTrex 30x including 3-axis electronic compass, barometric altimeter, and the feature to share geocache information wirelessly to other compatible devices such as VIRB action camera and accessory sensors.

Disclaimer:Information provided is believed correct and true to the best of our ability based on the manufacturer published information. However, GPSCompared is not responsible for typographical errors or incorrect data. Please visit the official manufacturer product page for more details on the specifications and features
Note: This writer neither own this product nor have the personal experience in handling it. However this article is produced based on manufacturer published facts and other relevant sources (if applicable).