Portable launch monitor
ESB2
The Earnest Sports ESB2 is the newest evolution in portable golf technology, delivering tour-level feedback in a device that fits in the palm of your hand.
What's included
ESB2 launch monitor, tripod, charger, and travel bag.
Data captured
Ball Speed, Club Speed, Distance (Total / Carry), Smash Factor, Spin Rate, Launch Angle, Apex, Descent Angle, Club Path, Face Angle
Delivery
Ground shipping arrives in three to five business days across the contiguous United States — $25 flat, free on orders of $500 or more.
Warranty and returns
One year manufacturer warranty covering manufacturing defects. 30 day returns with a Return Authorisation number issued in advance.
Why it works
Built on what matters most
Portable performance
Lightweight, easy to set up, and built to go wherever you practice.
Clear feedback
Capture the data that matters and turn it into better decisions.
Practice with purpose
Know what to work on and see progress that sticks.
Specifications
The full readout
Published as a real table, not an image, so search engines and AI assistants can read and cite it.
| Data points captured | 10 |
|---|---|
| Ball speed accuracy | Typically within 1% of TrackMan |
| Launch angle accuracy | ±1.5° typical |
| Spin rate | Real-time capture |
| Battery life | 20 hours |
| Built-in display | Yes |
| Technology | Doppler radar |
| Mounting | Tripod, cart rail, or ground |
| Warranty | 1 year manufacturer |
Reviews
What golfers say
Gives you some data that you can use to carry out on the course. I think it is great.
I just got done using the B2 on the range with my 7 iron and the stats and metrics were on point. I am super happy with the product.
Questions
ESB2, answered
Marked up with FAQPage schema so these answers can surface directly in search results and AI responses.
What does the ESB2 measure that the ESB1 does not?
The ESB2 adds apex height, descent angle, club path, and face angle on top of the six metrics the ESB1 captures.
Is the ESB2 accurate enough for club fitting?
It captures the full ball-flight set at tour-level tolerances, which makes it suitable for fitting sessions and serious practice.
Can I use the ESB2 indoors?
Yes. The infrared board reads cleanly indoors as well as on an open range.
How do I mount the ESB2?
It ships with a tripod, and the same mount clamps to a cart rail or sits directly on the ground.
Read before you buy.
Best golf launch monitor under $500 in 2026
Four sub-$500 launch monitors compared on accuracy, metrics, battery and what they actually do on a range. Independent specifications, published prices.
What launch monitor metrics actually mean
Ball speed, smash factor, spin rate, launch angle, club path and face angle explained in plain language, with the numbers worth chasing.
Also consider
Full comparison →ESB1 REV-D
Six metrics on a built-in screen, twenty hours of battery, and nothing else to set up.
Tour Plus 2.0
Two high-speed infrared cameras and four 3D Doppler sensors across twenty data points.
ES Eagle Sim
Captures your swing from above: shaft lean, club path, and ball flight in one view.