Side by side

DNT Optics Hydra HS225 vs RIX Storm S2R

The Hydra HS225 runs a 256×192 core at 12 µm behind a 25 mm lens; the Storm S2R runs 256×192 at 12 µm behind 25 mm. The Hydra HS225 is lighter by 1.3 oz. Approximate prices are ~$1,000 and ~$999.

How far you can see a person

Make out detailTell what it isSpot itMaker’s claim

DNT Optics Hydra HS225256×192 · 12 µm · 25 mm

80 m make out detail130 m tell what it is521 m spot it

RIX Storm S2R256×192 · 12 µm · 25 mm

80 m make out detail130 m tell what it is521 m spot itmaker claims 1,300 m

501002005001k2k5k m

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

Spec	DNT OpticsDNT Optics Hydra HS225	RIXRIX Storm S2R
Published
Sensor	256×192	256×192
Pixel pitch	12 µm	12 µm
NETD	≤25 mK	<25 mK
Refresh rate	50 Hz	50 Hz
Lens	25 mm	25 mm
Base magnification	3×	3.5×
Digital zoom	up to 12×	up to 14×
Field of view	—	7° horizontal
Display	1024x768 OLED	1024x768 AMOLED
Claimed detection	—	1,300 m
Claim basis	—	unspecified
Run time	5.5 h	4.5 h
Battery type	18650	18650
Weight	13.1 oz	14.4 oz
Length	8″	6″
Laser rangefinder	No	Yes
Ballistic calculator	No	Yes
Records video	—	Yes
Wi-Fi	Yes	Yes
IP rating	IP67	IP67
Warranty	2 years	3 years
Approx. price	~$1,000	~$999
Derived here
IFOV	0.480 mrad	0.480 mrad
Est. detection	521 m	521 m
Est. recognition	130 m	130 m
Est. identification	80 m	80 m
Claim ÷ estimate	—	2.5×
Derived field of view	—	7°
Pixels per degree	36.4	36.4
Where to buy	Amazon →	RIX →

Tinted rows are where these two differ. Prices are approximate.