← ComparisonsCalculated from the sensor's pixel pitch and the lens focal length, for clear air.
Side by side
ATN ThOR 5 320 5-20x vs Sig Sauer ECHO3 2-12x40
The ThOR 5 320 5-20x runs a 320×240 core at 12 µm behind a 35 mm lens; the ECHO3 2-12x40 runs 320×240 at 12 µm behind 40 mm. The ECHO3 2-12x40 is lighter by 14.1 oz. Approximate prices are ~$2,095 and ~$3,000.
How far you can see a person
Make out detailTell what it isSpot itMaker’s claim
ATN ThOR 5 320 5-20x320×240 · 12 µm · 35 mm
112 m make out detail182 m tell what it is729 m spot itmaker claims 2,560 m
Sig Sauer ECHO3 2-12x40320×240 · 12 µm · 40 mm
128 m make out detail208 m tell what it is833 m spot it
501002005001k2k5k m
| Spec | ATNATN ThOR 5 320 5-20x | Sig SauerSig Sauer ECHO3 2-12x40 |
|---|---|---|
| Published | ||
| Sensor | 320×240 | 320×240 |
| Pixel pitch | 12 µm | 12 µm |
| Refresh rate | 60 Hz | 30 Hz |
| Lens | 35 mm | 40 mm |
| Base magnification | 5× | 2× |
| Digital zoom | up to 20× | up to 12× |
| Field of view | 6.3° horizontal | 5.8° horizontal |
| Display | 1024x768 OLED | 454x454 AMOLED |
| Claimed detection | 2,560 m | — |
| Claim basis | human-sized target (ATN product page 2800 yd; ATN manual 'Human Detection Range' lists 1400) | — |
| Run time | 10 h | 6 h |
| Battery type | Internal Li-ion | CR123 |
| Weight | 30.7 oz | 16.6 oz |
| Length | 12.4″ | 4.7″ |
| Laser rangefinder | No | No |
| Ballistic calculator | Yes | Yes |
| Records video | Yes | Yes |
| Wi-Fi | Yes | Yes |
| IP rating | — | IPX4 |
| Warranty | 5 years | Infinite Guarantee (electronics 5 years) |
| Country of origin | USA | USA |
| Approx. price | ~$2,095 | ~$3,000 |
| Derived here | ||
| IFOV | 0.343 mrad | 0.300 mrad |
| Est. detection | 729 m | 833 m |
| Est. recognition | 182 m | 208 m |
| Est. identification | 112 m | 128 m |
| Claim ÷ estimate | 3.5× | — |
| Derived field of view | 6.3° | 5.5° |
| Pixels per degree | 51 | 58.2 |
| Where to buy | ATN → | Sig Sauer → |
Tinted rows are where these two differ. Prices are approximate.