Good
384-class35 mm
ECHO RQ35
$2,100Best price · 7 in-stock sellers
59.2HuntGrade Score
Key specs
- Resolution
- 384×288 px
- Hog ID
- 319 yd
- Field of view
- 7.6°
- Weight
- 31.7 oz
- Base mag
- 3.5×
- Display
- 1024×768
- Laser rangefinder
- Not built in
Product line decoder
One family. See the available configurations.
Compare Sig’s lenses, displays, rangefinders and power options. Open a family to see its exact scopes and prices.
5 scopes·1 product line Not offered·All lens sizes in mm
| The family | Sensor +Lens optionsSensor width (px) + available lenses (mm) | DisplayResolution in pixels | RangefinderBuilt in | BatteryListed runtime |
|---|---|---|---|---|
38435 6403550 | 1024×768 | 3 of 5varies by scope | Varies by scope11–12 h | |
ECHO scopes5 configurationsCompare the exact configuration, display and rangefinder in each scope below. 384-class35 mm ECHO RQ35$2,100Best price · 7 in-stock sellers 59.2HuntGrade Score Key specs
640-class35 mm ECHO RV35 $3,000Best price · 8 in-stock sellers 73.3HuntGrade Score Key specs
640-class35 mm ECHO SV35-LRF $2,500Best price · 10 in-stock sellers 73.1HuntGrade Score Key specs
640-class50 mm ECHO SV50-LRF $4,229Best price · 10 in-stock sellers 72.9HuntGrade Score Key specs
640-class50 mm ECHO RV50-LRF $4,000Best price · 7 in-stock sellers 72.7HuntGrade Score Key specs
| ||||
Sensor +Lens optionsSensor width (px) + available lenses (mm)
38435
6403550
Display
1024×768
Rangefinder
3 of 5varies by scope
BatteryListed runtime
Varies by scope11–12 h
ECHO scopes
5 configurationsCompare the exact configuration, display and rangefinder in each scope below.
384-class35 mm
ECHO RQ35
$2,100Best price · 7 in-stock sellers
59.2HuntGrade Score
Key specs
- Resolution
- 384×288 px
- Hog ID
- 319 yd
- Field of view
- 7.6°
- Weight
- 31.7 oz
- Base mag
- 3.5×
- Display
- 1024×768
- Laser rangefinder
- Not built in
- Battery
- Internal + 18500
- Runtime
- 12 h
640-class35 mm
ECHO RV35
$3,000Best price · 8 in-stock sellers
73.3HuntGrade Score
Key specs
- Resolution
- 640×512 px
- Hog ID
- 319 yd
- Field of view
- 12.5°
- Weight
- 31.1 oz
- Base mag
- 2×
- Display
- 1024×768
- Laser rangefinder
- Not built in
- Battery
- Internal + 18500
- Runtime
- 12 h
640-class35 mm
ECHO SV35-LRF
$2,500Best price · 10 in-stock sellers
73.1HuntGrade Score
Key specs
- Resolution
- 640×512 px
- Hog ID
- 319 yd
- Field of view
- 12.6°
- Weight
- 30.5 oz
- Base mag
- 1.5×
- Display
- 1024×768
- Laser rangefinder
- Built in
- Battery
- 2× 18650
- Runtime
- 11 h
640-class50 mm
ECHO SV50-LRF
$4,229Best price · 10 in-stock sellers
72.9HuntGrade Score
Key specs
- Resolution
- 640×512 px
- Hog ID
- 456 yd
- Field of view
- 8.8°
- Weight
- 31.3 oz
- Base mag
- 2×
- Display
- 1024×768
- Laser rangefinder
- Built in
- Battery
- 2× 18650
- Runtime
- 11 h
640-class50 mm
ECHO RV50-LRF
$4,000Best price · 7 in-stock sellers
72.7HuntGrade Score
Key specs
- Resolution
- 640×512 px
- Hog ID
- 456 yd
- Field of view
- 8.8°
- Weight
- 34.9 oz
- Base mag
- 2.5×
- Display
- 1024×768
- Laser rangefinder
- Built in
- Battery
- Internal + 18500
- Runtime
- 12 h
A shared sensor class doesn’t establish the same image quality. Open a family for its exact scopes and feature differences.
Sources & reading the comparison
Configurations come from our saved product catalog. Sensor columns use actual horizontal pixel counts; a shared resolution does not establish equal image quality. Runtime bars share a 12-hour scale on this page. The lighter segment shows the range within a family; an asterisk means runtime is missing for some scopes. Runtime depends on operating conditions and is not a HuntGrade test result. Mixed battery or display configurations are identified at scope level. Prices show confirmed in-stock offers from our saved retailer data; scopes without one show “Check availability”. Stars compare specifications across the full catalog. Hog identification distances are calculated estimates. Switchable lens positions are recorded for AGM Clarion. Open a scope for its specifications and source links.
Behind the brand
The company behind your scope.
The people
One part of a wider optics business.
1985U.S. company founded as SIGARMS
The U.S. company began as SIGARMS in 1985, took the SIG SAUER name in 2007 and expanded into optics in 2015. Its Electro-Optics business spans sights, riflescopes and rangefinders. ECHO is its thermal family, alongside the company’s broader shooting-products business.
The hardware
ECHO names a family, not a sensor maker.
Our 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.
We do not infer the origin of a sensor from SIG’s corporate headquarters or from a product-family name.
After the sale
Read the electronics coverage.
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.
5 years
Recorded thermal coverage
Check the five-year electronic component terms, including who is covered and when the term begins.
Sources & details
Electro-optics and warranty pages reviewed during the September 11 rollout. Corporate location follows the existing dossier. No sensor-source or country-of-manufacture claim is inferred.
WHERE TO BUY
Where to buy Sig.
9 retailers list 5 of the 5 Sig scopes in our catalog. See who carries the lineup and how often each store has the lowest listed price.
StoreSig scopes listedListedLowest price
Brownells
5 of 5cheapest on 3
EuroOptic / Scopelist
5 of 5cheapest on 3
MidwayUSA
5 of 5cheapest on 3
Scheels
5 of 5cheapest on 3
B&H Photo Video
5 of 5—
OpticsPlanet
4 of 5cheapest on 1
Sportsman's Warehouse
4 of 5—
Natchez
2 of 5cheapest on 1
Palmetto State Armory
2 of 5—
Typical listed price gap for Sig: $500 between the lowest and highest store prices.
Saved listings include out-of-stock scopes; lowest-price counts use offers recorded as available and include ties. EuroOptic and Scopelist count as one store.