Garmin Descent X50i Dive Computer, 3-Inch Touchscreen

Garmin Descent X50i is a dive computer with a 3-inch touchscreen, integrated dive light and a 20 ATM dive rating. Its large display is intended to make dive information easier to view, while SubWave diver messaging and tank monitoring require a separately sold Descent T2 transceiver.

At a glance

The 3-inch colour touchscreen is described as displaying dive profiles, depth charts and maps at a glance.
A sapphire lens, leakproof metal inductive buttons and 20 ATM dive rating are listed for dive use.
An integrated backup dive light is included as a built-in feature claim.
DiveView maps list bathymetric contours for more than 4,000 dive sites, and the log can store data from up to 200 dives.
SubWave preset messaging and monitoring for up to eight divers require a Descent T2 transceiver sold separately.

Price

$1,679.99Save 23%

Reference price: ~~$2,179.99~~

Price checked: Nov 13, 2026

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Often bought together

Garmin Descent™ T2 Transceiver with Subwave™ Wireless Communication | Monitor Up to 8 Tanks When Under Water, Pair with Your Compatible Air-Integrated Descent™ Dive Computer (Sold Separately)

$729.99

Pros and cons

Pros

Larger 3-inch touchscreen presents more dive information than a compact watch-style display, according to the listing.
Integrated dive light and stored dive-site maps add useful functions without relying on the separately sold transceiver.
Dive logs can be stored and reviewed in the Garmin Dive smartphone app.

Technical specifications

25 specifications

Identity
Brand	Garmin
Model	Descent™ X50i

Display and video
Screen size	3 inches
Screen technology listed	touch screen
Resolution	480 x 272

Connectivity and controls
Wireless connection listed	Bluetooth, Wi-Fi
Interface input	Buttons

Power and battery
Battery type	Lithium Polymer

Dimensions and installation
Form factor	Rectangular
Dimensions listed	10.8 x 9.5 x 13 centimetres
Weight listed	100 g

Materials and protection
Water resistance listed	Waterproof
Water resistance depth listed	200 meters
Dive rating stated in title	20 ATM

Computing specifications
Storage listed	0.01 GB
Operating system	Garmin OS

Dive functions
Satellite navigation systems	GLONASS, GPS, Galileo
Dive log capacity	up to 200 dives
Dive sites covered by DiveView maps	4,000+
Preset diver-to-diver messaging range with T2	up to 30 meters
Tank pressure, distance and depth monitoring with T2	up to 8 divers (range of 10 meters)

Other details
Lens material	sapphire lens
Band material listed	Silicone
Colour	Black
Compatible phone platforms listed	Compatible with iOS and Android devices

What to know before buying

Listing details to confirm

SubWave diver messaging and monitoring for up to eight divers are conditional on pairing with the separately sold Descent T2 transceiver. The listing is inconsistent about battery chemistry, calling it Lithium Polymer in specifications and Lithium Ion in the battery line, and its dimensions appear in two slightly different formats. The listed 0.01 GB storage and 0.01 battery capacity do not provide a useful capacity unit or operating-time figure, so confirm these details if they affect your decision.

Who is it for?

A good fit for

Divers who want a large touchscreen for viewing dive profiles, depth information and maps.
Buyers who can make use of the integrated dive light, dive log and Garmin Dive app.
Divers considering SubWave functions who are prepared to purchase the compatible Descent T2 transceiver separately.

Less suited to

Buyers who require SubWave messaging or tank monitoring without purchasing a separate transceiver.
Anyone needing a stated battery runtime or clearly specified battery capacity before buying.

Garmin Descent X50i Dive Computer, 3-Inch Touchscreen · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 12 ratings

5 stars89%89%
4 stars0%0%
3 stars0%0%
2 stars0%0%
1 star11%11%

The supplied evidence includes aggregate ratings but no written customer feedback. The distribution is mostly five-star with some one-star ratings, so experiences appear positive overall but not uniformly so. The small rating sample cannot establish why customers rated it that way or how it performs for a particular diver.

Frequently asked questions

Does the Descent X50i include diver-to-diver messaging and tank monitoring on its own?

The listing says those SubWave features require pairing with a Descent T2 transceiver, which is sold separately.

How many dive records can it store?

The listing states that its dive log can store data from up to 200 dives and can be reviewed in the Garmin Dive smartphone app.

What does the listing say about its screen?

It lists a 3-inch touchscreen and a resolution of 480 x 272. The claimed larger display is intended to make dive charts, profiles and maps easier to read.

Is battery life specified?

No operating-time figure is supplied. The listing gives a battery capacity of 0.01 without a unit and conflicts on whether the battery is Lithium Polymer or Lithium Ion.