Two things decide whether this tool works for you, and neither is on the spec sheet. Which phone you carry, because the Bluetooth fails outright for many iPhone owners. And whether you know that the reading includes the five inch body of the tool until you tell it otherwise.
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625 ratings at 4.4, build quality owners associate with the brand, and a well liked tool for long or awkward measurements. The Bluetooth is the reason to pay the premium and it is the part that fails on iPhone.
| What DEWALT says | What owners report |
|---|---|
| Bluetooth connectivity | Will not connect at all for many iPhone owners |
| 100 ft range | Fine indoors. Struggles on long shots and in sun |
| Plus or minus 1/16 in | Mostly upheld. One owner found 1/4 to 1/2 in out |
| Fast measurement | Short shots can take 10 to 20 seconds |
| Nothing about the reference end | Default reading includes the 5 in body |
| Durable build | Consistently praised |
| Battery life | Undemanding, confirmed by owners |
One owner gave the clearest description of this we have seen on any product, and it is worth quoting in substance because it catches people out constantly.
They found that the reading included the length of the tool. Measure something and the display says seven inches, and the actual gap is two inches, because the five inch body of the unit is part of the number. They noted it depends on how you are holding it.
That is the reference point setting, and every laser measure has one. What makes it worth flagging here is the scale. Five inches of error dwarfs the sixteenth of an inch tolerance you paid for, by a factor of eighty. It is not a fault, it is a setting, and it is the single largest avoidable mistake in laser measuring.
Decide which face of the tool you are measuring from and set it deliberately. Back of the case when you are pressing the unit against a wall or into a cabinet. Front of the case when you are holding it out over an edge. Then confirm it again any time somebody else has used the tool, because the setting persists and the assumption does not. The full explanation is here.
This is the reason the DW099S does not top our Bluetooth guide despite being a good tool.
Multiple iPhone owners report the Bluetooth will not connect at all. One described the tool in warm terms as a standalone measuring device, fast, accurate and with the durability they expect from the brand, then gave it two stars and returned it because the main selling point was unusable on their phone.
If you carry Android this does not affect you and the connectivity is a genuine advantage over Bosch, which offers none. If you carry an iPhone, you are paying a premium for a feature you should assume will not work, and the measuring performance is available for less elsewhere.
One owner reported that short measurements can take ten to twenty seconds to register. They were otherwise positive, calling it a decent tool that does not drain batteries and is fairly easy to use.
On a single measurement that is nothing. On a day where you take forty of them it is a meaningful part of an hour, and it is the sort of thing that quietly decides which tool you actually pick up. The same owner noted issues on long measurements and in the sun, which is what red beam units do.
Most owners do not question the accuracy. One recent reviewer did, reporting theirs was a quarter to a half inch out when checked against their own DEWALT tape measure, and returning it for a Bosch.
That is a single account and it sits against 625 ratings, so we would not weight it heavily. It is worth pairing with the five inch reference point issue above, because a reading that includes part of the tool body is the most common explanation for a laser measure appearing to disagree with a tape. Check the reference setting before concluding a unit is faulty.
The praise is consistent and it is about feel and reach rather than specification.
Owners describe superb quality and ease of use, with one saying they had no idea something like this would be so good. The recurring use case is long measurements and awkward spots where a tape does not work, which is exactly where a laser earns its place.
One reviewer bought it for a father who does most of his own house projects and reports it has become one of his go to tools. Another bought it for a grandson who had just graduated in construction engineering technology and had asked for it by name.
That is a tool people are giving as gifts to keen users, which is its own kind of endorsement.
Android carrying crews already standardised on DEWALT, and anyone who wants a well built 100 ft unit for indoor work and does not care about the app.
iPhone owners buying it for the Bluetooth. Anyone measuring outdoors. Anyone taking dozens of short measurements a day, given the acquisition time. And anyone who wants more than 100 ft, since DEWALT has nothing else in the range to move up to.
If you want an app that works on any phone. Leica's software is the one owners do not complain about. The DISTO D1 is the cheapest way into it, though check which listing you are buying.
If you do not need the app at all. The Bosch GLM100-23 covers the same 100 ft, shows sixteenths, has four times the ratings and costs less. We compare them directly here.
If you need more range. DEWALT stops at 100 ft. Bosch continues to 165 ft and 400 ft. The Bosch range is compared here.
If the tool gets dropped. Nothing DEWALT sells here is sealed or drop rated, despite the brand's reputation for exactly that. Our contractors guide ranks on what survives.
Whatever you buy, check it against a known length, and set the reference end first so the check means something.
For what we recommend overall across every use case, the front page is the place to look.