RIX Stride ST3 Lite — 384×288 thermal handheld monocular

How far you can see a person

48 m make out detail78 m tell what it is313 m spot it┆ maker’s claim

501002005001k2k5k m

Calculated from the sensor's pixel pitch and the lens focal length, for clear air.

RIX quotes 780 m, 2.5× our figure, because makers usually measure against a person’s full height rather than their width. Why the numbers differ

RIXHandheld monocular · 384-class

RIX Stride ST3 Lite

Approx. price: ~$999
Sensor: 384×288 · 12 µm
Lens: 15 mm · 1×
Weight: 6.7 oz

Price and availability on RIX’s site may differ.

Best for

Walk-and-scan glassing from a jacket pocket

01Specifications

As published by RIX. Sources: rixoptics.com (product page spec table + store API price, stock).

Sensor: 384×288
Pixel pitch: 12 µm
NETD: <20 mK
Refresh rate: 50 Hz
Lens: 15 mm
Base magnification: 1×
Digital zoom: up to 6×
Field of view: 17.5° horizontal
Display: 1024x768 OLED
Claimed detection: 780 m
Claim basis: unspecified
Run time: 4 h
Battery type: 18650
Weight: 6.7 oz
Length: 4.7″
Laser rangefinder: No
Ballistic calculator: No
Records video: Yes
Wi-Fi: Yes
IP rating: IP67
Warranty: 5 years
Approx. price: ~$999

02Pros and cons

From the published specs, not owner reports.

For it

Sensitive sensor that picks out small heat differences on humid or rainy nights (104th-best of 285 that publish it)
Takes 18650 batteries you can swap in the field
Light at 6.7 oz, the lightest of the 112 handhelds here
Waterproof (IP67), survives a dunking
Records video and connects to a phone app
Warranty: 5 years
Wide 17° view for scanning a field

Against it

Only 4 h of battery
No rangefinder, so you judge distance by eye
Entry-level 384×288 sensor, with less detail than a 640
Zoom past 1× is digital and gets blurry

03Compare the Lite

04Related units

More from RIX →All 384-class →All 15 mm →

RIX Pocket K3 — 384×288 thermal handheld monocular

RIXHandheld monocular

RIX Pocket K3

Est. detection

313 m

Maker’s claim

780 m

Sensor: 384×288
Pitch · Hz: 12 µm · 50
Lens: 15 mm

7.5 oz~$799

RIX Titan T3 — 384×288 thermal handheld monocular

RIXHandheld monocular

RIX Titan T3

Est. detection

521 m

Maker’s claim

1,300 m

Sensor: 384×288
Pitch · Hz: 12 µm · 50
Lens: 25 mm

LRF · 15 oz~$1,799

AGM Taipan V2 15-384 — 384×288 thermal handheld monocular

AGM Global VisionHandheld monocular

AGM Taipan V2 15-384

Est. detection

313 m

Maker’s claim

750 m

Sensor: 384×288
Pitch · Hz: 12 µm · 50
Lens: 15 mm

10.6 oz~$895