Choosing between ADT and Arlo is one of the most common dilemmas for home security shoppers in 2026. Both are excellent systems with loyal followings, but they take distinctly different approaches to home protection. In this detailed comparison, we break down every major difference to help you make the right choice for your specific needs, budget, and lifestyle.
After extensive hands-on testing of both systems, our team has identified clear winners in each category. Whether you prioritize price, features, monitoring quality, or smart home integration, this guide will point you to the better option. We have spent over 100 hours testing these systems side by side in real-world conditions to give you the most accurate comparison possible.
| Feature | ADT | Arlo |
|---|---|---|
| Our Rating | ||
| Equipment Price | $199-$599 | $129-$499 |
| Monthly Fee | $24.99-$59.99 | $0-$17.99 |
| Installation | Professional | DIY |
| Contract | 36 months | No |
| Monitoring | Required | Optional |
| Cameras | Yes | Yes |
| Doorbell | Yes | Yes |
When it comes to upfront costs, ADT equipment starts at $199-$599 while Arlo starts at $129-$499. Monthly monitoring fees are $24.99-$59.99 for ADT compared to $0-$17.99 for Arlo. Over a 3-year period, the total cost of ownership can vary significantly between these two systems depending on which plan and equipment package you choose.
It is worth noting that ADT requires a 36 months contract, while Arlo does not require a contract. This flexibility in commitment can be a deciding factor for many buyers, especially renters or those who may be moving in the near future.
ADT strengths include 145+ years of security expertise, largest professional monitoring network, 24/7 professional monitoring included. On the other hand, Arlo excels with best-in-class camera quality, wire-free battery cameras, 4k hdr video available. Both systems offer comprehensive sensor ecosystems, mobile app control, and integration with popular smart home platforms, but the execution and user experience differ in meaningful ways.
In terms of camera quality and video features, both brands have made significant improvements in their 2026 lineups. ADT offers 1080p-4K, AI detection, while Arlo provides 4K HDR, color night vision, 180 FOV. Both support cloud storage with their respective subscription plans.
ADT uses professional installation while Arlo uses diy installation. This is a significant difference — DIY installation saves money and allows immediate setup, while professional installation ensures optimal placement and configuration.
ADT integrates with Google Home, Alexa, Z-Wave, while Arlo works with HomeKit, Alexa, Google, IFTTT, SmartThings. If you are deeply invested in a specific smart home ecosystem, this could be the deciding factor in your choice.
While both ADT and Arlo are excellent home security systems, ADT edges ahead with its 4.3/5 rating thanks to 145+ years of security expertise and largest professional monitoring network. However, Arlo may be the better choice if you prioritize best-in-class camera quality.
Our #1 Pick: SimpliSafe — Expert-rated, no contracts
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