Garmin quatix 8 51 mm Marine GPS Smartwatch

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Product guide

Garmin quatix 8 51 mm Marine GPS Smartwatch

The Garmin quatix 8 is a 51 mm marine GPS smartwatch with a 1.4-inch AMOLED display, boating controls for compatible Garmin equipment, and activity tracking. Its listed 29-day battery life is a smartwatch-mode claim, while customer feedback includes mixed reports about screen visibility in direct sunlight.

At a glance

Boating tools include tide-change and anchor-drag alarms, sailing race features, and onboard data streaming when paired with compatible Garmin equipment.
The listing describes wrist control of select compatible chartplotters, autopilots, trolling motors and stereos. Compatibility is device-dependent.
Built-in speaker and microphone support calls when paired with a smartphone. Some watch voice commands are described as usable without a smartphone connection.
The listing claims a 40-meter dive rating and support for scuba and apnea activities. Its technical details separately list water resistance as 100 meters, so the distinction needs clarification.
The feature list includes 100+ indoor and outdoor sports apps and health monitoring such as heart rate, sleep, HRV and respiration tracking.

Price

$949.99Save 21%

Reference price: ~~$1,199.99~~

Price checked: Nov 14, 2026

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Often bought together

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Pros and cons

Pros

Marine-specific controls, sailing tools and boat-data features give it a clear focus for users with compatible Garmin onboard equipment.
Built-in GPS and several listed satellite systems support navigation and outdoor activity tracking.
A 32 GB storage listing and smartwatch features cover more than basic timekeeping.

Cons

Some of the marine controls and streamed boat data depend on separately owned, compatible Garmin equipment.
The listed battery duration is tied to smartwatch mode, so it should not be treated as an all-use battery estimate.

Technical specifications

25 specifications

Identity
Brand	Garmin
Model	Garmin Quatix 8

Display and video
Screen size	1.4 inches
Screen technology listed	AMOLED

Connectivity and controls
Wireless connection listed	Bluetooth, USB, Wi-Fi
Controls	Buttons, Touchscreen
Operating system	Garmin OS
Satellite navigation systems	GLONASS, GPS, Galileo, QZSS

Power and battery
Battery energy listed	3.05 watt-hours
Battery life listed	29 days
Battery type	Lithium Ion
Battery capacity listed	779 milliamp_hours

Dimensions and installation
Form factor	Round
Dimensions listed	10.3 x 8.5 x 6.5 inches
Weight listed	92 g
Case size	51 mm

Materials and protection
Water resistance listed	Waterproof
Water resistance depth	100 meters
Case material	Titanium
Band material	Silicone

Computing specifications
Storage listed	32 GB

Features and use
Listed features	Accelerometer, Alarm Clock, GPS, Multisport Tracker, Notifications
Sports listed	Boating, Fitness, Multi-Sports, Running, Walking
Metrics measured	Distance, Elevation, Heart Rate, Sleep Duration
Compatible phone platforms listed	Android Devices, iOS Devices

What to know before buying

The listing says health metrics are estimates and that the watch is not a medical device. Pulse Ox availability varies by country.
Customer feedback mentions mixed display visibility, including a report that the screen is less clear in direct sunlight.

Listing details to confirm

Listing details are inconsistent or unconfirmed: the title identifies a 51 mm watch, while listed dimensions are 10.3 x 8.5 x 6.5 inches and 0.57"D x 2"W x 2"H. Water resistance is described as both a 40-meter dive rating and 100 meters. Confirm the intended size and rating details for the exact listing. Battery life is stated as 29 days in smartwatch mode, not across every activity or setting.

Who is it for?

A good fit for

Boaters who want wrist access to compatible Garmin chartplotter, autopilot, trolling-motor or stereo controls.
Sailors and multisport users who want boating tools alongside GPS and fitness tracking.
Buyers seeking a large-format watch with marine and dive-related features, after confirming the differing water-resistance descriptions.

Less suited to

People who need a confirmed water-resistance rating for a specific dive depth without first resolving the listing discrepancy.
Buyers who want marine controls without compatible Garmin onboard equipment.
Anyone who prioritizes strong screen readability in direct sunlight without checking the display in their intended conditions.

Garmin quatix 8 51 mm Marine GPS Smartwatch · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 66 ratings

5 stars75%75%
4 stars12%12%
3 stars4%4%
2 stars5%5%
1 star4%4%

Customer feedback reports positive impressions of functionality, appearance and battery life, including a report that it lasted a month. Display visibility is mixed, with a customer noting reduced clarity in direct sunlight. That concern may matter for a marine watch used outdoors, particularly given the listed AMOLED screen. The feedback is encouraging overall but does not establish visibility or battery performance for every user or setting.

Positive themes

Customers report that the watch works well and looks as described.
Customers praise battery life, and one says it lasts all month.

Mixed feedback

Display visibility feedback is mixed, including a report of reduced clarity in direct sunlight.

Frequently asked questions

What battery life does the listing claim?

It lists 29 days. The product description specifies up to 29 days in smartwatch mode, so activity use and settings may differ.

Can the quatix 8 control boat equipment?

The listing describes controls for select compatible Garmin chartplotters, autopilots, Force trolling motors and Fusion stereos. Check compatibility with your specific onboard devices.

What water-resistance rating should I rely on?

The listing gives both a 40-meter dive rating and a separate 100-meter water-resistance depth. These statements conflict, so confirm the applicable rating before choosing it for diving.

Does it support phone calls?

The listing says its built-in speaker and microphone can make and take calls when the watch is paired with a smartphone.