BOSCH GLM100-23 100 Ft Blaze Laser Distance Measure, Includes 2 AA Batteries, Distance Measuring Laser
Best for
Best budget
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$43.92
Updated Jun 27, 2026 · 1 min read

Sources behind this verdict
6 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the Bosch GLM100-23 is the value benchmark of the category. It pairs a sub-$45 price with the single largest verified-purchase base in this pool, 4.7 stars across more than 17,500 Amazon reviews, and an r/Tools owner describes it as 'quite good... very accurate and battery lasts a long while' after two years of use.
What reviewers liked
- Lowest price among the Bosch picks at around $44
- Massive verified base of 4.7 stars across 17,500+ reviews
- r/Tools owner reports multi-year accuracy and long battery life
- Simple, intuitive point-and-shoot operation praised by retailer reviewers
Where it falls short
- Red beam struggles in bright light and outdoors per r/MilwaukeeTool
- One r/Metric user reported a unit arriving out of tolerance
- Lacks the app/Bluetooth logging of pricier models
- Some configurations criticized for unit/fraction display limitations
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Across the reviewers we read, the Bosch GLM100-23 is the value benchmark of the category. It pairs a sub-$45 price with the single largest verified-purchase base in this pool, 4.7 stars across more than 17,500 Amazon reviews, and an r/Tools owner describes it as 'quite good... very accurate and battery lasts a long while' after two years of use. A Lowe's listing summary echoes that customers overwhelmingly praise its intuitive point-click-measure operation.
The consistent knock is the red beam. In r/MilwaukeeTool, a Bosch red-laser owner says it 'definitely shows its weaknesses in bright light or outdoors,' and an r/Metric thread raises an out-of-tolerance unit and the lack of a feet-and-inches fractional mode on some configurations. These are the trade-offs of buying the affordable red-beam tier rather than a green or camera-assisted model.
For homeowners, DIYers and pros who mostly measure indoors and want a trusted brand without spending much, the trust-weighted consensus is strongly favorable: the volume and consistency of positive feedback here is hard to match.
- Accurate
- This laser measuring tool features long range measuring with extreme accuracy. It measures distances up to 100 feet to within 1/16 inch, in meters, feet, inches, with fractions or decimals
- Easy-To-Use
- This laser measure features a simple, user-friendly layout with two-button operation: one for measuring, one for rounding
- Class Ii Laser
- Specs for this laser distance measuring tool are 635 nm; <1 mW
- Portable
- This compact laser measurement tool is easy to carry and fits in your pocket
- Rounding Button
- On this digital measuring tool, the button allows users to easily round the measurement result from 1/2 inch up to 1/32 inch
- Display
- BOSCH Blaze laser measure features a backlit display with large icons that allows measurements to be easily read, even in dark areas. It is brighter than its predecessor, the GLM20
I have the brand new 165' Bosch, and I can confirm that it is amazing. Being able to send measurements straight to my phone is one of those ...
It has no feet and inches mode, or common inch fractions. It claims 2 mm accuracy over its 60 m range (mine arrived out of tolerance, but has a ...
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