There is no single best home security system, and anyone who tells you otherwise is selling something. There is a best system for a particular household — and the variables that decide it are boring: do you rent or own, do you want a contract, do you want cameras, and how much do you want to think about it.
What follows is our ranking, with the reasoning stated so you can disagree with it. Every score comes from the same assessment framework: equipment quality, monitoring, contract terms, app experience and value.
| Pick | Award | Score | Monthly | Contract |
|---|---|---|---|---|
| SimpliSafe | Best overall | 4.6/5 | $0–$32 | None |
| Vivint | Best professional installation | 4.4/5 | $30–$60 | None if equipment paid upfront; 42–60 months if financed |
| Ring | Best cameras and value | 4.3/5 | $0–$20 | None |
| ADT | Best monitoring network | 4.2/5 | $25–$70 | 36 months typical for professional installs |
| Abode | Best for smart home integration | 4.1/5 | $0–$25 | None |
1. SimpliSafe — Best overall
Why it wins: It does the fundamentals better than anything else and never traps you. For most households asking “which security system should I buy”, this is the answer.
SimpliSafe wins because it is unglamorous and reliable. Sensors pair and stay paired. The base station has cellular and battery backup. The app opens quickly. Monitoring is month to month — start it, stop it, no penalty.
Live agent intervention is the feature that pushes it to the top. When an outdoor camera detects motion during an alert, an agent can view the feed, speak through the camera and give police an eyewitness confirmation. Deterring a break-in beats documenting one, and verified alarms get priority response in many jurisdictions.
Where it falls short: automation is minimal, the camera range is narrower than Ring’s, and the best features sit on the top tier.
What we like
- No contract, and monitoring can be paused or cancelled monthly
- Genuinely simple installation — most homes are done in under an hour
- Live agents can speak through outdoor cameras to interrupt an intruder
What to watch
- Home automation is minimal compared with Vivint or a Hubitat-style setup
- Camera line-up is smaller than Ring or Arlo
- Some useful features (unlimited camera recording) require the top tier
2. Vivint — Best professional installation
Why it wins: The only mainstream system where security and automation genuinely work as one, commissioned by someone who surveyed your property first.
If you want a system rather than an alarm, Vivint is the one to buy. Arming can lock the doors, close the garage and set back the thermostat as a single reliable action, because one company designed and installed all of it.
The Outdoor Camera Pro is the standout: it performs person detection on-device and responds autonomously with light, tone and a spoken warning. That happens whether or not you are awake.
Where it falls short: cost. Expect $3,500–$5,500 over five years, usually via 42–60 month equipment financing that functions much like a contract. Never sign on the doorstep.
What we like
- Best-in-class outdoor camera with on-device deterrence and person detection
- Genuine home automation — locks, garage, thermostat, lighting under one app
- Professional design and installation of the whole system
What to watch
- The most expensive option here by a clear margin
- Financing agreements typically run 42–60 months
- Equipment is proprietary and has little resale value
3. Ring — Best cameras and value
Why it wins: Unlimited camera recording plus 24/7 alarm monitoring for roughly $20 a month is the best bundled value in the category.
Ring makes the best video doorbell most people can buy and the widest camera range at consumer prices. The alarm is genuinely good and genuinely cheap.
The value case is strongest once you have several cameras: the top plan covers unlimited devices at one address and includes professional monitoring, where competitors charge that much for monitoring alone.
Where it falls short: cameras record nothing without a subscription, there is no local storage on most devices, and footage lives on Amazon’s servers. Ring settled with the FTC in 2023 over internal access to customer video; security has improved materially since.
What we like
- The widest, best-executed range of doorbells and cameras at consumer prices
- Professional monitoring is notably cheap for what it includes
- Deep Alexa integration — announcements, Echo Show feeds, voice arming
What to watch
- Video recording essentially requires a subscription
- No local storage option on most devices
- Amazon ownership is a real consideration for privacy-minded buyers
4. ADT — Best monitoring network
Why it wins: The deepest, most redundant professional monitoring infrastructure in the industry, with a company that has been doing it since 1874.
ADT’s product is really the network that answers when the alarm fires: many interconnected monitoring centres built so that an outage at one is absorbed by another. If maximum assurance on that specific point is what you want, nothing else here matches it.
Google Nest cameras and doorbells now integrate natively, which gives the video side a genuine lift.
Where it falls short: 36-month contracts with real termination fees, quote-based pricing that makes comparison shopping tedious, and installation quality that varies because much of it is carried out by independent dealers. Ask whether you are dealing with ADT or a dealer, and research that dealer by name.
What we like
- One of the largest professional monitoring networks in the US, with redundant centres
- Professional installation and ongoing service included in most plans
- Google Nest cameras and doorbells integrate natively into the newer systems
What to watch
- Multi-year contracts on professionally installed systems, with early-termination fees
- Pricing is quote-based, so comparison shopping takes phone calls
- Dealer network means installation quality varies by market
5. Abode — Best for smart home integration
Why it wins: Real Apple Home support, Z-Wave and Zigbee, and monitoring you can buy by the day — nothing else in this list is this flexible.
Abode is the choice for households that want the alarm to be part of a wider smart home rather than a walled garden. It speaks Z-Wave, Zigbee and Matter, and it works with Apple Home, which almost no competing alarm does.
On-demand monitoring is its cleverest idea: switch professional monitoring on for the fortnight you are away, off when you return. For occasional travellers this is materially cheaper than a continuous plan.
Where it falls short: setup takes an afternoon rather than an hour, first-party cameras are middling, and it is a smaller company than the rest of this list.
What we like
- Genuine Apple Home support, which most competitors lack
- Z-Wave, Zigbee and Matter — bring your own sensors
- On-demand professional monitoring by the day or week
What to watch
- Setup rewards patience; it is not a 20-minute system
- Smaller company than the majors, with a smaller support organisation
- First-party cameras are middling
How to narrow this down in two minutes
Answer three questions and the field collapses.
- Will you accept a multi-year contract? If no, that removes ADT’s professionally installed systems and most of Vivint’s financing arrangements.
- Do you want to install it yourself? If no, you are choosing between ADT and Vivint. If yes, you are choosing between SimpliSafe, Ring and Abode.
- Are cameras a priority or an afterthought? Priority points to Ring. Afterthought points to SimpliSafe.
What we did not include, and why
Cove offers the cheapest professional monitoring available and is a rational choice for a narrow requirement, but thin cameras and negligible automation keep it out of a general top five. See our Cove review.
Wyze is extraordinary value, but a pattern of security incidents — including two events where users saw other households’ footage — means we cannot recommend it as a primary system. Our Wyze review sets out the full record.
Google Nest no longer sells a security system. Nest Secure was discontinued; the devices are excellent but there is no first-party alarm.
Kangaroo is a reasonable budget option for a studio flat, covered in our apartment security guide.
What monitoring actually does
Professional monitoring is widely misunderstood, so it is worth being precise.
When an alarm triggers, the system contacts a central station. An operator attempts to reach you, usually by phone, and asks for a passcode. If you confirm a false alarm, nothing further happens. If you cannot be reached, or you confirm a genuine emergency, they dispatch police.
Two things follow. First, response time depends mostly on your local police, not the monitoring company — a faster central station saves seconds, not minutes. Second, many jurisdictions deprioritise unverified alarms because false-alarm rates are so high. This is why verification features — SimpliSafe’s agent intervention, Vivint’s camera analytics — matter more than the marketing suggests.
Self-monitoring means you get the notification and decide what to do. That is genuinely adequate for many households, particularly in flats with neighbours nearby, and it costs nothing.
Frequently asked questions
Which home security system is best overall?
SimpliSafe, for most households: reliable hardware, no contract, professional monitoring you can cancel monthly, and live agent intervention. Vivint is better if you want genuine automation and professional installation.
Do I need professional monitoring?
Not necessarily. Self-monitoring works well for flats and homes where neighbours are close. Professional monitoring earns its cost if you travel, sleep heavily, or want police dispatched when you cannot be reached.
What is the cheapest good security system?
For monitored security, Cove or Wyze Home Monitoring are cheapest monthly. For the best value overall, Ring’s top plan bundles unlimited cameras and monitoring for about $20 a month.
Are security systems worth it?
The evidence that visible security measures deter opportunistic burglary is reasonably strong. Whether the ongoing cost is worth it depends on your circumstances — a $250 DIY kit with no subscription is a very different proposition from a $5,000 five-year commitment.
Can I install a security system myself?
Yes, easily, for SimpliSafe, Ring, Abode and most DIY systems. Sensors are adhesive-mounted and need no tools. Professional installation makes sense for large homes, wired cameras, or if you simply prefer not to.