Garmin Instinct 3 Renewed, 45 mm AMOLED GPS smartwatch

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Product guide

Garmin Instinct 3 Renewed, 45 mm AMOLED GPS smartwatch

Garmin Instinct 3 is a renewed 45 mm GPS smartwatch with an AMOLED display, built-in LED flashlight and health and activity features. The listing describes up to 18 days of battery life, but gives no operating conditions for that figure. Its rugged construction claims and navigation features suit outdoor and multisport use, while the mixed rating evidence offers limited reassurance about the renewed unit.

At a glance

The listing claims an AMOLED screen, built-in GPS and a built-in LED flashlight with variable intensities and strobe modes.
Navigation features listed by the manufacturer include a 3-axis compass, barometric altimeter and multi-band GPS with SatIQ technology.
Health monitoring claims include wrist-based heart rate, sleep monitoring and Pulse Ox. The listing says Pulse Ox is unavailable in some countries and the watch is not a medical device.

Price

£203.96Save 15%

Reference price: ~~£239.95~~

Price checked: 14 Nov 2026

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Often bought together

Diruite 4Pcs Screen Protector for Garmin Instinct 3 45mm Solar/AMOLED Cover | 9H Hardness Tempered Glass Screen Cover,HD Clear,Anti Scratch,Touch Sensitive,No Bubbles,Ultra-thin Full Coverage Protection

£8.99

Pros and cons

Pros

Built-in GPS and listed outdoor navigation tools combine with activity tracking for running, hiking and cycling.
The built-in flashlight has variable intensities and strobe modes, which can provide illumination without a separate torch.
The listing names compatibility with both iOS and Android devices.

Cons

The supplied battery-life figure has no usage-mode conditions, so it does not establish how long the watch lasts with particular features enabled.

Technical specifications

20 specifications

Identity
Brand	Garmin
Model	Instinct 3

Display
Screen size	1.2 Inches
Screen technology listed	AMOLED

Connectivity and controls
Wireless connection listed	Bluetooth
GPS	Built-in GPS
User input	Buttons

Power and battery
Battery life listed	18 days
Battery type	Lithium Ion
Battery capacity	1800 Milliamp Hours

Dimensions and construction
Form factor	Round
Weight listed	53 Grams
Case size	45 mm
Band material	Silicone

Materials and protection
Water resistance listed	Water Resistant
Water resistance depth	100 Metres

Computing specifications
Storage listed	4 GB

Listed features
Health metrics	Distance, Elevation, Heart Rate, Sleep Duration
Sports listed	Cycling, Fitness, Hiking, Multi-Sports, Running
Phone compatibility	Compatible with iOS and Android devices

What to know before buying

Listing details to confirm

The listing identifies a 45 mm model and claims up to 18 days of battery life, but gives no battery-use mode or conditions. It also describes the case as fibre-reinforced polymer with a metal-reinforced bezel without clearly separating case and watch dimensions. Check the selected renewed listing for the exact configuration and battery claim. Pulse Ox is not available in all countries, and health data is an estimate rather than medical advice.

What’s in the box

Included

Garmin Instinct 3 Renewed
Cable
Documentation

Who is it for?

A good fit for

Outdoor users who want built-in GPS, a compass, an altimeter and a wrist-based flashlight.
Runners, hikers, cyclists and multisport users looking for activity and health tracking in a rugged-style watch.
Buyers seeking a Garmin watch compatible with iOS or Android who are comfortable considering a renewed product.

Less suited to

Anyone who needs a guaranteed battery runtime for a specific GPS or display mode, since the listing supplies no usage conditions.
Anyone relying on Pulse Ox in a country where it is unavailable or seeking a medical device.

Garmin Instinct 3 Renewed, 45 mm AMOLED GPS smartwatch · photo 2 — Additional product photo 2

Customer reviews on Amazon

3.6 / 5 · 10 ratings

5 stars49%49%
4 stars16%16%
3 stars11%11%
2 stars0%0%
1 star24%24%

The supplied evidence contains aggregate ratings only, with no customer comments to explain the spread. The distribution is mixed, including both five-star and one-star ratings, so it offers limited reassurance about the renewed unit. Buyers should weigh this uncertainty against their needs for GPS, health tracking and outdoor features, and check the selected renewed listing's condition and terms.

Frequently asked questions

How long does the battery last?

The listing states 18 days, also described as up to 18 days in the title, but does not specify usage modes or conditions. Treat it as a listing claim rather than a guaranteed runtime.

Does this watch work with iPhone and Android?

The listing says it is compatible with iOS and Android devices. It does not provide more detailed compatibility requirements.

Can I use its health readings for medical decisions?

No. The listing says the watch is not a medical device and that its health data is intended as a close estimate. Pulse Ox is not available in all countries.

What is included with the renewed watch?

The explicit contents list names the watch, a cable and documentation. The listing describes the case construction separately, but does not identify a case as a separate package item.