
ECHO
5 scopesSIG’s compact thermal line, from basic setups to versions with a built-in rangefinder.
$2,100–$4,229
This sensor and lens combination favors identifying animals farther away, trading a broad scanning view for a narrower view of distant targets. Its 31.7 oz mounted weight and 12-hour listed runtime are worth weighing together for longer nights. Compare current offers and the alternatives below to see what a change in price buys you.
Side by side
Compare price, image performance, and handling to see which tradeoffs suit your hunting. Start with these alternatives, or compare any scope in the full lineup.
| Scope | This scope | Similar setup | Lower price |
|---|---|---|---|
| At a glance | |||
| Best price | $2,100 | $1,999 | $1,875, advantage |
| HuntGrade Score | 59.2, advantage | 58.5 | 58.5 |
| Overall rank | #118 of 155, advantage | #121 of 155 | #121 of 155 |
| Image | |||
| Image score | 54.3 | 55.1, advantage | 53.9 |
| Resolution | 384×288 | 384×288 | 384×288 |
| Objective lens | 35mm | 35mm | 35mm |
| Field of view | 7.6° | 7.5° | 10.7°, widest field of view |
| Identification | 319 yd, advantage | 319 yd, advantage | 225 yd |
| Handling | |||
| Handling score | 75.1, advantage | 62.9 | 74.9 |
| Mounted weight | 32 oz | 36 oz | 17 oz, advantage |
| Runtime | ~12 hrs, advantage | ~6.5 hrs | ~4 hrs |
| Laser rangefinder | No | Built in, advantage | No |
| Warranty | |||
| Warranty score | 90.0 | 100.0, advantage | 82.0 |
| Term | 5 years, advantage | 5 years, advantage | 4 years |
| Transferable | No — first owner only | Yes, advantage | Yes, advantage |
The reasoning
See how each specification contributes to the ECHO RQ35’s Image, Handling, and Warranty scores, and how those combine into its HuntGrade Score.

384×288 sensor · 35 mm lens · 12 µm
Behind the scope
See where the ECHO RQ35 fits in Sig’s lineup. Explore the product families, compare configurations and prices, and learn about the company behind the scope.
1 families · In-stock price ranges

SIG’s compact thermal line, from basic setups to versions with a built-in rangefinder.
$2,100–$4,229Our research has not established the sensor supplier for every ECHO scope. App connectivity, ballistic features and thermal specifications should be checked on the exact model.
SIG’s warranty distinguishes its optical and mechanical coverage from electronic components. The electronic component policy is the relevant starting point for a thermal purchase.
Explore the families, compare prices with similar scopes, and learn about the company behind them.
Buying options
See how prices differ for the ECHO RQ35, and what each seller offers for the money.
Prices verified October 2026, seller terms August 2026. HuntGrade may earn an affiliate commission. How we make money
Scroll across for policies, prices and seller links.
| Seller | Shipping | Returns | Price | Seller links |
|---|---|---|---|---|
| MidwayUSA | Free shipping over $100 Ships same dayOrder by 1:00 PM CT | 90-day returns | $2,100Lowest price | Visit seller |
| EuroOptic | Free shipping over $250 Ships same dayOrder by 3:00 PM ET | 15-day returns | $2,100Lowest price | Visit seller |
| Scopelist | Free shipping over $250 Ships same dayOrder by 4:00 PM ET | 15-day returns | $2,100Lowest price | Visit seller |
| Brownells | Calculated at checkout Ships in 1–2 business days | 120-day returns | $2,100Lowest price | Visit seller |
| Scheels | Free shipping over $75 Ships in 1–2 business days | 90-day returns | $2,100Lowest price | Visit seller |