At a glance

Display type: ActiveLook head-up micro-display (multicolor), projected into the field of view
Weight: 38.5 g
Battery: 24 hr

Training data floats in your eyeline -- up to six metrics at once from 40+, with red-to-green effort zones in color
No camera, no audio, no notifications: a single-purpose sports display that cannot record anyone
Sports telemetry only -- no media, calls, or assistant; everyday smart-glasses buyers want a different product
Apple Watch support is partial: only the heart-rate widget renders in color, and power and radar widgets need Garmin

Full specifications

AI-Enabled

ENGO 3

Name: ENGO 3
Brand: ENGO
Price: 399.95 USD
Availability: InStock

ENGO

$400

Buy at ENGO direct

Weight: 38.5 g
Battery: 24 hr

Training data floats in your eyeline -- up to six metrics at once from 40+, with red-to-green effort zones in color · 5 pros & 4 cons

The ENGO 3 is a sports head-up display in sunglasses form: it projects your training numbers -- up to six at a time from more than 40 metrics -- into your field of view a few meters ahead, so you never look down mid-stride. The multicolor display adds red-to-green effort zones, and an ambient light sensor adjusts brightness automatically. There is no camera, no speaker, and no notifications by design; it does one job. ENGO states 38.5 grams, Bluetooth 5.4, an IP55 rating -- sealed against sweat and spray -- 24 hours of battery, and a full charge in under 2 hours. It pairs with more than 81 Garmin devices and Apple Watch (Series 4 and later) through the ActiveLook app. The $399.95 base model was in stock with October delivery when we checked; a photochromic version is $449.95, and the cyclist variant adds Garmin Varia radar alerts in view.

Pros & cons

Pros

Training data floats in your eyeline -- up to six metrics at once from 40+, with red-to-green effort zones in color
No camera, no audio, no notifications: a single-purpose sports display that cannot record anyone
24-hour battery, IP55 sweat and spray resistance, and 38.5 grams, per ENGO's spec sheet
Works with 81+ Garmin devices and Apple Watch via the ActiveLook app; the cyclist variant shows Garmin Varia radar warnings in view
In stock direct from ENGO at $399.95 when we checked (October 7, 2026)

Cons

Sports telemetry only -- no media, calls, or assistant; everyday smart-glasses buyers want a different product
Apple Watch support is partial: only the heart-rate widget renders in color, and power and radar widgets need Garmin
ENGO publishes no brightness figure -- just an auto-brightness claim -- so daylight legibility is theirs to claim, not ours to show
Coros and Polar watches are not supported

Full specifications

Physical
Weight (g)	38.5
Frame style	sports sunglasses (wide-lens mask)
IP rating	IP55
Not published: Color options, Foldable
Battery & power
Battery life (hours)	24
Charging time (min)	2
Not published: Charging method
Connectivity
Connectivity	Bluetooth 5.4
Compatible devices	Garmin watches and bike computers (81+ devices), Apple Watch (Series 4+, watchOS 10.1+), iPhone, Android
Not published: Tethered
Sensors & input
Camera	✕ No
Speakers	✕ No
Not published: Microphones, Tracking, Gesture control, Voice control

Where to buy

Buy at ENGO direct· $400

Price verified 2026-10-07

ENGO 3 specs: quick answers

What is the ENGO 3?: Connected sports sunglasses that float your training data -- pace, power, heart rate, up to six numbers at once -- in your field of view, fed by your Garmin or Apple Watch over the ActiveLook app. ENGO launched the engo3 for runners in April 2026 and added a cyclist variant with Garmin Varia radar alerts in September 2026. Source: ENGO ↗
How much does the ENGO 3 weigh?: The ENGO 3's glasses weigh 38.5g according to the manufacturer specification.
How long does the ENGO 3's battery last?: The ENGO 3 is rated for about 24 hours of battery life.
Does the ENGO 3 have a camera or speakers?: Neither. The engo3 is a display-only device by design -- no camera, no audio, no notifications -- so there is nothing to charge your privacy against and nothing to distract you mid-run. Source: ENGO ↗
How much does the ENGO 3 cost?: The ENGO 3 costs $400.
What watches work with the ENGO 3?: More than 81 Garmin devices and Apple Watch Series 4 or later (watchOS 10.1+) via the ActiveLook app. Apple Watch support is partial: only the heart-rate widget renders in color, and the power and radar widgets need a Garmin. Coros and Polar aren't supported. Source: ENGO ↗

ENGO 3: FAQs

How much does the ENGO 3 cost?

The ENGO 3 costs $400 (USD). It is available from 1 retailer listed on this page.

How much does the ENGO 3 weigh?

The ENGO 3 weighs 38.5g according to the manufacturer specification.

How long does the battery last on the ENGO 3?

The ENGO 3 has a rated battery life of 24 hours.

What devices work with the ENGO 3?

The ENGO 3 lists compatibility with: Garmin watches and bike computers (81+ devices), Apple Watch (Series 4+, watchOS 10.1+), iPhone, Android.

Is the ENGO 3 worth it?

The ENGO 3 is priced at $400 (USD). For that you get 24 hours of rated battery life. It weighs 38.5g. The full spec breakdown on this page shows what the price includes.