Articles by Christopher Null
Aiper Seagull Plus review: This bigger bot isn’t necessarily better
This more powerful version of Aiper’s capable pool-cleaning robot has a bigger battery, but we found it wasn’t as capable as its smaller stablemate.
Defender Guard Pro 2K Wi-Fi review: The Wi-Fi needs work
Wi-Fi troubles are the major issue in this otherwise workable pan/tilt offering.
TP-Link EC71 Kasa Spot Pan Tilt review: A budget security cam
A rock-bottom price tag helps make TP-Link’s latest indoor security camera a no-brainer.
Alen's BreatheSmart 75i air purifier is big-boned but powerful
The BreatheSmart 75i may be overkill for most consumer homes, but this bruiser packs enough punch for commercial use.
Proscenic L40 Smart Lock review: Not ready for prime time
Proscenic’s first smart lock tries to do everything, but it’s in dramatic need of some polish.
SwitchBot Hub 2 review: A universal translator for smart homes
This smart home hub works with old and new smart home technologies, including Bluetooth, Wi-Fi, HomeKit, Matter—even infrared.
Swann CoreCam Pro Spotlight review: A small but solid upgrade
The only new feature you get with Swann's upgraded "pro" model is a spotlight, but it's still a solid security camera.
Inse Y10 Pool Vacuum Robot review: The little robot that couldn’t
This pool cleaner is decidedly cheap, but it simply doesn’t do the job.
Imilab EC5 Floodlight Camera 2K review: Unique, inexpensive
A first in the outdoor floodlight camera market, the Imilab EC5 pans and tilts, and its very low price makes it easy to overlook its flawed software.
TruSens Z-3500 review: Affordable air purification for large rooms
The relatively inexpensive TruSens Z-3500 is a smart air purifier for larger rooms and comes with a remote air-quality sensor, ultraviolet lighting to kill viruses, and a very good mobile app.
Blink Wired Floodlight Camera review: Value-priced security
Blink's floodlight cam costs a whole lot lower than the competition from Ring and Nest, and it delivers more lumens of brightness than either of them.
Yale's great-looking Assure Lock 2 is saddled with a buggy app
Yale's new line of smart locks looks sensational and works with the big three smart-home platforms, but the app needs work.
TP-Link Tapo P125M review: A compact, Matter-certified plug
One of the first Matter-certified smart home products, the Tapo P125M is missing only one feature: Energy monitoring.
The Wyze Bulb Color BR30: An ultra-affordable smart floodlight
Give your downlights the color treatment they deserve, for as little as $11 per can.
Kwikset Home Connect 620: A basic lock for Z-Wave users
Got Z-Wave? Kwikset’s budget-priced lock includes all that standard’s latest features.
Irrigreen Precision Sprinkler System review: Waste not, want not
This radical new concept in lawn care puts water precisely where you want it. The downside: you must replace—not retrofit—your existing sprinkler system.
Xiaomi's Smart Air Purifier 4 Compact is cheap and effective
The only big surprise you’ll encounter with this small air purifier is its small price tag.
Wemo Smart Dimmer with Thread review: For Apple homes only
HomeKit support? Check. Thread support? Check. Matter support? Nope. Does that, uh, matter? Maybe not.