Emergent Tech

Internet of Things

Nest's slick IoT burglar alarm catches crooks... while it eyes your wallet

Wireless guard dog Secure has many plus points – but they come at a cost

By Kieren McCarthy in San Francisco


Review Not that long ago, a thermostat was just a thermostat. It was a beige box that was often installed by someone who came out to your house or office. It did what it did. Turned the heat on, turned the heat off. Had a schedule.

Then came Nest, which promised to bring the ugly beige box into the internet era with sexy styling, smart technology and apps. Suddenly, your thermostat looked cool, it automatically figured out your best settings and saved you money to boot.

The big question when Nest announced it was moving into a similar beige-box market – security systems – in September was can it do the same? Will we all start to covet this new security system?

Say Hello to my little friend: Nest blasts IoT world with doorbell, home security gear


Well, having tested the system now for two months, we can answer authoritatively: yes and no. And which side you will end up on will depend on two things: the size and shape of your home; and how much money you have and are willing to spend on a security system.

First up: the positive. All things being equal, we would have no difficulty in recommending the Nest Secure. The gizmo maker has, once again, brought it unique sense of styling and usability to a competitive but largely homogeneous market.

Here, in the United States at least, there are two main arms of the security market: the companies that do everything for you – including providing and installing all the equipment – and lock you into a contract for monitoring; and the companies that sell you the hardware which you install and then you pay a (lower) monthly fee for monitoring.

In the first category, ADT dominates; and in the second, Frontpoint is persistently the most highly rated. Nest hopes to steal customers from both as well as use its name and ecosystem of products to win new customers – likely millennials.

Its pitch is pretty much the same as its previous products: we have produced a better looking, better functioning product that works seamlessly with an app and so over the internet. Throw out the beige box and go Nest!

Less differentiation

But that gap is smaller in the security market than it was in the thermostat market. For one, security companies have been making better products for a few years now. Their highest-end products all have apps, and increasingly those manufacturers have started encroaching on Nest's smart home territory, offering smoke detectors and video cameras that all tie into their system. Remote monitoring is readily available.

The name of the game is to get your kit in a customer's house. At that point, the lock-in aspect is enormous. People can't be bothered to tear out an entire system and install a new one. Much easier just to stick with what you've got.

And the reason the ADT model still has 90 percent of the market is because it does it all for you, charging a flat fee to install, no charge for all the equipment, and then somewhere between roughly $30 and $60 a month on a three-year contract. So you get everything upfront for low hassle and low cost.

A competing subscription model shifts the cost by getting you to buy the equipment and then offers a slightly lower monthly monitoring fee.

The big difference is that ADT-style companies' equipment is typically not as nice. It is larger, clunkier beige box. You punch your code into a keypad. It beeps angrily at you. Frontpoint-style companies have smaller, sleeker equipment and slightly more user-friendly controls.

Coming into this market, Nest's products are better in that they are much nicer to work with. The access code keypad and alarm siren come as one in a fat puck – similar to the Nest thermostat but thicker. Rather than have two separate types of sensors – one for doors and windows, and one for motion – Nest has combined it all into a single sensor. Rather than a rectangular box, it is a smooth, curved, oblong.

You place the sensors around your home, and they communicate wirelessly with the Nest Guard base station. If someone's detected breaking in, a siren in the base unit ultimately goes off.

Nest is better than competitors in how the system works. Rather than threatening beeps, it talks to you. "Motion detected at the front door," "you have 30 seconds to turn off the alarm," "put down your weapon, you have 30 seconds to comply." OK, obviously not the last one.

Considering that 99.9 per cent of the interactions with a security device will be you turning it on and off, it is far more pleasant to have a voice than a beep.


Nest also had a tag system. You just wave your tag near the main alarm unit and it is enabled, or disabled. Nest is not the first company to offer this by any stretch of the imagination. But while tags are increasingly common in Europe, in America, punching in a code is still the most common way of interacting with your security monitoring device. The tag is better in almost every way (although you can still type in a code on the Nest – and even create multiple codes and assign them to multiple people).

The Nest Guard base station, part of the Nest Secure kit, has to be on a horizontal service ... But the tags are nice

Another big plus: Nest's smartphone app really is the best on the market. It seamlessly ties in all Nest products: from smoke detectors to cameras to thermostats and now this security system. And it works consistently well. Only on very rare occasions has it performed badly or crashed – and that was almost certainly an issue with the smartphone rather than the app.

One really nice thing the Nest system does that we found ourselves using more and more is how it can communicate with your phone. Walking toward the house, the Nest phone app popped up a prompt: "It looks like you’re close to home – turn off alarm?" And with one tap, you can turn off your alarm before you even open the door.

If you forget to turn the alarm on, if Nest detects you are not at home, you'll get a prompt asking if you want to turn the alarm on. In our experience this happens about five minutes after you've left the house.

You can also use this location system to turn on and off a Nest camera. We set it to turn on an indoor camera when the phone was not there, and turn if off again when we turned up. It's a good privacy setup.

One more thing that is good: it has, like most systems do, a Home setting where you enable the alarm but it only goes off if one of the sensors covering entryways into the house is triggered, ie: you can move around inside your home but any effort to get in sets off the siren.

Nest has a neat setup for the situation when you want to pop outside – to go for a run or to put out some rubbish or receive a freshly cooked pizza – you simply press a button at the bottom of the sensor and it temporarily pulls it out of the system. Come back in and press the button again, and it's back in the alarm system. You get used to it pretty quickly, although you will occasionally forget and have to tell the alarm system that all is fine.

Oh, and each sensor also has a little pathway light that you can set to turn on if you walk past it – which can be really useful at night in a dark house.

And, yes, Nest Secure requires an internet connection, via Wi-Fi, so it can talk to your phone's app.

Now cost

So that's the good stuff. All things being equal, buy the Nest Secure. It is the best system we have used. It's a pleasure to use. And after you've used it for a while, it doesn't feel good to go back to another system (in this case, we were running the Nest Secure in parallel alongside our ADT installation).

Now, let's talk about cost.

The Nest Secure system is more expensive. And the more of it you need, the more expensive it gets.

Its basic starter kit – base station, two sensors, two tags – costs $499. Which is fine. But if you have more than one door and one window that you want to monitor, you will need to buy more sensors at $59 a pop.

By comparison, Frontpoint's $675 system (which is often discounted, currently to $350) includes a base station, 5 door sensors, 2 motion sensors, a glass breaking sensor, and a smoke alarm. Build the same setup with Nest and it's $915. A lot more.

Likewise, the ADT model will give you a much, much bigger setup for less than $100, with a three-year monitoring contract starting from about $30 a month. It claims its own equipment is worth $850. If you terminate the service early, you'll have to cough up 75 per cent of the monthly fees you would have paid anyway to the end of the contract term.

The Nest sensors are smarter than their rivals' – and cost the same

As for the cost of extra sensors, that's pretty much standard across the industry: Frontpoint charges $33 for a door/window sensor, and $65 for a motion sensor; ADT charges $60 for its sensors; Nest charges $59.

Monitoring charges – getting someone to come to your house if an alarm goes off – are also pretty similar. Nest charges $25 a month through a third-party if you sign a three-year contract; $35 a month without. In fact, the company it uses – MONI – is the second-largest security company in the US behind ADT and offers its own solutions. Frontpoint, as mentioned earlier, is $30-50 a month; and ADT is roughly $30 to $60 a month (but comes with the equipment for free).

So the upshot is: Nest is more expensive upfront and a similar cost on everything else.

And the downsides

Then there are the downsides. For one, you have to install Nest yourself. The company has done a really good job of making it very simple to do – you scan a sensor using the Nest app, follow a few simple instructions, and it does the rest. But it is still a hassle.

The one baffling thing – at least to us – is that the Nest Secure base station has to be placed on a horizontal surface. Considering that the vast majority of security devices are attached to a wall, this seems like an odd choice.

Since it also needs a power source, unless you have a waist-height table near your front door with a power socket nearby, this starts becoming a problem. It also limits the ability to tear out an old system and install the Nest (as you could do with its thermostat). We can only guess that Nest felt it wanted to keep the same diameter size as its thermostat but that made the system too fat – it would come too far away from the wall – and so it decided that it had to be placed flat on a surface. An odd design choice and not one we really agree with.

And then there's power source. Professionally installed security systems will often hide away and protect the power supply cabling. You don't see the wires. The keypad is typically kept separate from the alarm unit. This all adds to the general security of the system itself: someone can break in and tear the keypad off the wall, but the equipment will still function overall and the alarm will sound as well as alert the monitoring service.

The Nest Guard base station is a keypad-and-siren all-in-one, and plugs into a wall socket. And while the company provides a screw-in cover for the power outlet that would stop it from being simply unplugged, we can't get past the fact that a burglar can simply grab the siren – before it goes off – and tear it out the wall, smashing it on the floor. We didn't test the Nest Guard to destruction but we doubt it could withstand much abuse.

The other thing is that the alarm is loud but not that loud. It is bearable. Burglar alarms are designed to be extremely uncomfortable to be near when they go off – as anyone who has accidentally triggered one will know. They also, in theory, attract neighbors when they are in full effect.


The Nest's siren was much quieter to the extent we tested whether we'd be able to hear it from the farthest part of our house (downstairs and in a far corner). We could hear it. But it was still quieter than we expected.

And while in that farthest corner – we placed a sensor there to test the reach of the system. It worked and connected wirelessly, but since then has lost contact several times with the base station. That means to make sure everything stays online, we'd have to buy a Nest extension box – another $70.

When it comes to cost, one thing worth considering is whether you would want the monitoring service. The fact is the Nest ecosystem works very well together – especially if you include its cameras in the mix.

If someone breaks into your house, the connected cameras will turn on and start recording. You would get an immediate alert to your phone. You could check on your cameras in seconds. Assuming you have cameras in positions that would pick up any forced entry, you have to wonder whether it's worth paying someone $25 to $35 a month to respond in the (hopefully) rare occasion that the alarm goes off.

You would be able to assess the situation and call the police yourself. And if you are on holiday, you could sign up to the monitoring service for the time you are away. So if you are comfortable with that approach, using technology in your favor, the Nest approach could work out to be an equivalent cost over a few years.

Taken overall, Nest has – yet again – done a really nice job on this security system. It is better than the other products on the market. But it is also more expensive. It doesn't improve on the current market offerings sufficiently to make it something people will get excited about – like its thermostat did. But it does round-out a Nest smart-home ecosystem.

As ever, the really big test is: can it replace an installed system? In other words, will this reviewer tear out his ADT equipment, and pay more than a thousand dollars to have an equivalent Nest kit?

No. But it is tempting. ®

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