Portable launch monitor
ESB2
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The Ernest Sports ESB2 is our most portable launch monitor. It measures your ball speed and club speed with Doppler radar and sends your numbers to the free ES Range app on your phone or tablet — it has no built-in screen. Carry, smash factor, launch angle and spin are calculated from your measured speeds and the club you select, so you get the full picture of every shot on the range or clamped to a cart. Twenty-hour battery, palm-size, and built in the USA.
What's included
ESB2 launch monitor, tripod, charger, and travel bag.
Data captured
Measured directly — ball speed and club speed. Calculated from those and the club you select — smash factor, carry, total distance, launch angle, spin, apex and descent angle.
User manual
ESB2 Quick-Start Guide (PDF) — opens in a new tab.
Delivery
Ground shipping arrives in three to five business days across the contiguous United States — $9.99 flat, free on orders of $499.99 or more (free shipping is contiguous-US only). Alaska and Hawaii ship at a flat $50 per order; Canada and Europe ship with UPS at rates calculated at checkout, with duties and import taxes the recipient’s responsibility.
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 | Multiple |
|---|---|
| Ball & club speed | Doppler-measured |
| Ball speed accuracy | Typically within about 1% in Ernest Sports testing |
| Launch angle, spin, distances | Estimated from your measured speeds and club |
| Battery life | 20 hours |
| Readout | ES Range app (phone or tablet) — no built-in screen |
| Technology | Doppler radar |
| Mounting | Tripod, cart rail, or ground |
| Warranty | 1 year manufacturer |
| Weight | 4 lb |
In their words
What customers tell us
“Gives you some data that you can use to carry out on the course. I think it is great.”
Golfer, St. Ives Country Club
“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.”
Tournament participant
Questions
ESB2, answered
Marked up with FAQPage schema so these answers can surface directly in search results and AI responses.
How is the ESB2 different from the ESB1?
They measure the same way — ball speed and club speed by Doppler radar. The ESB1 has a built-in screen and works with no phone; the ESB2 is smaller and cart-mountable and shows your numbers in the free ES Range app on your phone or tablet.
Does the ESB2 need a phone?
Yes. The ESB2 pairs with the free ES Range app on your phone or tablet to show your numbers — it has no built-in screen. If you want a screen with no phone, that is the ESB1.
Is the ESB2 a club-fitting device?
No. The ESB2 is built for practice, distance gapping and speed training. It measures ball and club speed directly and estimates the rest of your ball flight from those numbers; for club fitting you want a unit that optically measures spin and face angle.
Can I use the ESB2 indoors?
Yes. The ESB2 uses Doppler radar, so it works indoors into a net or screen as well as outdoors on the range — just give the ball a few feet of clear flight in front of the unit.
Read before you buy.
Best golf launch monitor under $500 in 2026
Four sub-$500 launch monitors compared on measured data, battery and phone-free use, from the $199.99 ESB1 REV-D up, and honest about where a rival wins.
Most Golf AI Is Guessing. Ours Is Measuring.
Most AI golf apps guess at ball flight. ES Range’s AI analysis reads measured shots from your Ernest Sports launch monitor and tells you what to work on next.
What launch monitor metrics actually mean
Ball speed, smash factor, spin and launch angle in plain language, with the target number for each and which ones are measured rather than estimated.
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.