Free tools Windows power users keep installed
One-click scans. No signup required.
Wi-Fi research has demonstrated two different things: detecting and tracking movement through some walls, and matching a person’s movement to a candidate video. Those are not the same as a router identifying someone by name. The reported results come from research prototypes and specific experiments, not a feature established for ordinary home routers.
Can Wi-Fi detect people through walls?
Yes, in research settings, radio signals can partly pass through barriers and reflect from people. When someone moves, the reflected signal changes. A sensing system can analyze those changes to infer that a person is moving and, in some setups, estimate their position or gestures.
As an Amazon Associate I earn from qualifying purchases.
MIT’s Wi-Vi prototype used two transmit antennas and one receiver. Its signals were arranged to cancel reflections from static objects, helping isolate reflections that change as a person moves. MIT describes the technique as using MIMO interference nulling and treating human motion as an RF beam. The researchers tested the system in office buildings using USRP software radios. MIT Media Lab’s Wi-Vi project summary and MIT News’ technical explanation describe the prototype.
The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →What Wi-Vi demonstrated
MIT reported that Wi-Vi could track moving people, estimate their number and relative locations, and recognize simple gestures through walls. These are movement and sensing capabilities. They do not establish that Wi-Vi can determine a person’s name or identify an unknown individual.
#1 Best Overall
- DUAL-BAND WIFI 6 ROUTER: Wi-Fi 6(802.11ax) technology achieves faster speeds, greater capacity and reduced network congestion compared to the previous gen. All WiFi routers require a separate modem. Dual-Band WiFi routers do not support the 6 GHz band.
- AX1800: Enjoy smoother and more stable streaming, gaming, downloading with 1.8 Gbps total bandwidth (up to 1200 Mbps on 5 GHz and up to 574 Mbps on 2.4 GHz). Performance varies by conditions, distance to devices, and obstacles such as walls.
- CONNECT MORE DEVICES: Wi-Fi 6 technology communicates more data to more devices simultaneously using revolutionary OFDMA technology
- EXTENSIVE COVERAGE: Achieve the strong, reliable WiFi coverage with Archer AX1800 as it focuses signal strength to your devices far away using Beamforming technology, 4 high-gain antennas and an advanced front-end module (FEM) chipset
- OUR CYBERSECURITY COMMITMENT: TP-Link is a signatory of the U.S. Cybersecurity and Infrastructure Security Agency’s (CISA) Secure-by-Design pledge. This device is designed, built, and maintained, with advanced security as a core requirement.
What does “identify a person” mean in the separate XModal-ID research?
UCSB’s XModal-ID research tackled a narrower identity-matching task: it compared gait-related features from Wi-Fi measurements with features derived from candidate video footage, then assessed whether the person in that video was the person behind a wall. In other words, the system was not identifying an arbitrary person from a name database; it was checking a match against supplied video.
The project description says the approach uses received signal magnitude from a pair of Wi-Fi transceivers outside the area and a feature-combination network. It says the system does not need prior Wi-Fi/video training data for the target person or prior knowledge of the operating area. It still requires candidate video and a trained network; it is not effortless identification from any standard router. See the UCSB XModal-ID project page.
Rank #2
- Dual-band Wi-Fi with 5 GHz speeds up to 867 Mbps and 2.4 GHz speeds up to 300 Mbps, delivering 1200 Mbps of total bandwidth¹. Dual-band routers do not support 6 GHz. Performance varies by conditions, distance to devices, and obstacles such as walls.
- Covers up to 1,000 sq. ft. with four external antennas for stable wireless connections and optimal coverage.
- Supports IGMP Proxy/Snooping, Bridge and Tag VLAN to optimize IPTV streaming
- Access Point Mode - Supports AP Mode to transform your wired connection into wireless network, an ideal wireless router for home
- Advanced Security with WPA3 - The latest Wi-Fi security protocol, WPA3, brings new capabilities to improve cybersecurity in personal networks
Reported XModal-ID results
UCSB reports these accuracy results for through-wall candidate-video matching across three areas. The page describes pools of eight people and does not state a publication year for these results.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
| Test area | Reported accuracy | Wi-Fi/video pairs | Participant pool |
|---|---|---|---|
| Through-wall area 1 | 83% | 384 | 8 people |
| Through-wall area 2 | 82% | 744 | 8 people |
| Through-wall area 3 | 89% | 360 | 8 people |
UCSB also reports 88% overall accuracy in non-through-wall experiments across two areas, using 768 Wi-Fi/video pairs from eight people. That result concerns a different setting from the through-wall tests.
Rank #3
- NIGHTHAWK WIFI 6 ROUTER FOR YOUR WHOLE HOME: Delivers fast, reliable WiFi across every room of your apartment or small home for streaming, gaming, video calls, and smart home devices, all running at the same time without slowing each other down.
- WORKS WITH YOUR EXISTING INTERNET SERVICE: Pairs with your existing modem or gateway via ethernet. Compatible with most cable, fiber, DSL, and satellite providers. Some gateways and modem router combos may require bridge mode. No coax needed.
- SET UP AND MANAGE YOUR NETWORK WITH THE NIGHTHAWK APP: Download the free Nighthawk app on iOS or Android for guided setup. Manage WiFi, run speed tests, pause devices, and set up guest networks from anywhere. Active internet required.
- READY FOR THE DEVICES YOU ALREADY OWN: Your phones, laptops, and TVs work right out of the box. WiFi 6 delivers speeds up to 1.8 Gbps across 2.4 GHz and 5 GHz bands. Backward compatible with WiFi 5 and earlier.
- COVERAGE IN EVERY ROOM: Covers up to 1,500 sq. ft. for up to 20 connected devices. Walls, floors, and interference can reduce range. Larger or multi-story homes may benefit from a NETGEAR Orbi mesh WiFi system.
These percentages describe particular experiments, not a general benchmark or a promise of performance in other buildings, with larger populations, or under different conditions. They do not show that the system can identify any person without a candidate video. A separate 2021 IEEE Internet of Things Journal abstract reports 92 test experiments for multiple-person gait identification using Wi-Fi magnitude measurements, but the available abstract alone does not establish a directly comparable accuracy figure or broader real-world performance. IEEE paper record.
How do the two capabilities differ?
| Research system | Task demonstrated | Inputs and setup | What the result does not establish |
|---|---|---|---|
| MIT Wi-Vi | Detecting and tracking movement; estimating count and relative location; simple gesture recognition | Low-power Wi-Fi signal, two transmit antennas and one receiver; built using USRP software radios | Identification of a person by name or matching to a specific identity |
| UCSB XModal-ID | Matching a person behind a wall to a person in candidate video using gait-related features | Wi-Fi magnitude measurements from paired transceivers, candidate video, and a trained feature-combination network | Unrestricted identification from an ordinary router, without comparison footage, or guaranteed accuracy beyond its experiments |
Is this a feature in ordinary home Wi-Fi routers?
The cited work describes research prototypes, not a turnkey consumer feature. MIT says Wi-Vi was built into USRP software radios. UCSB describes paired transceivers and a designed signal-processing pipeline. The sources do not establish that an ordinary home router can reproduce either system’s results, or that a commercial service for identifying people through walls is deployed.
Rank #4
- 𝐅𝐮𝐭𝐮𝐫𝐞-𝐑𝐞𝐚𝐝𝐲 𝐖𝐢-𝐅𝐢 𝟕 - Designed with the latest Wi-Fi 7 technology, featuring Multi-Link Operation (MLO), Multi-RUs, and 4K-QAM. Achieve optimized performance on latest WiFi 7 laptops and devices, like the iPhone 16 Pro, and Samsung Galaxy S24 Ultra.
- 𝟔-𝐒𝐭𝐫𝐞𝐚𝐦, 𝐃𝐮𝐚𝐥-𝐁𝐚𝐧𝐝 𝐖𝐢-𝐅𝐢 𝐰𝐢𝐭𝐡 𝟔.𝟓 𝐆𝐛𝐩𝐬 𝐓𝐨𝐭𝐚𝐥 𝐁𝐚𝐧𝐝𝐰𝐢𝐝𝐭𝐡 - Achieve full speeds of up to 5764 Mbps on the 5GHz band and 688 Mbps on the 2.4 GHz band with 6 streams. Enjoy seamless 4K/8K streaming, AR/VR gaming, and incredibly fast downloads/uploads.
- 𝐖𝐢𝐝𝐞 𝐂𝐨𝐯𝐞𝐫𝐚𝐠𝐞 𝐰𝐢𝐭𝐡 𝐒𝐭𝐫𝐨𝐧𝐠 𝐂𝐨𝐧𝐧𝐞𝐜𝐭𝐢𝐨𝐧 - Get up to 2,400 sq. ft. max coverage for up to 90 devices at a time. 6x high performance antennas and Beamforming technology, ensures reliable connections for remote workers, gamers, students, and more.
- 𝐔𝐥𝐭𝐫𝐚-𝐅𝐚𝐬𝐭 𝟐.𝟓 𝐆𝐛𝐩𝐬 𝐖𝐢𝐫𝐞𝐝 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 - 1x 2.5 Gbps WAN/LAN port, 1x 2.5 Gbps LAN port and 3x 1 Gbps LAN ports offer high-speed data transmissions.³ Integrate with a multi-gig modem for gigplus internet.
- 𝐎𝐮𝐫 𝐂𝐲𝐛𝐞𝐫𝐬𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐂𝐨𝐦𝐦𝐢𝐭𝐦𝐞𝐧𝐭 - TP-Link is a signatory of the U.S. Cybersecurity and Infrastructure Security Agency’s (CISA) Secure-by-Design pledge. This device is designed, built, and maintained, with advanced security as a core requirement.
A software-defined radio development kit may be relevant to research prototyping, but that is distinct from buying a router with a supported “see through walls” or identity-recognition feature.
What should readers take from the headline?
Wi-Fi sensing can reveal movement through some walls in controlled research setups. A separate experiment showed candidate-video matching based on gait-related signal features, with accuracy results from small participant pools and specific areas. Neither result means that a typical router can name or reliably identify anyone moving in another room.
Quick Recap
Best Value
- Dual band router upgrades to 1200 Mbps high speed internet (300mbps for 2.4GHz plus 900Mbps for 5GHz), reducing buffering and ideal for 4K stream
- Full Gigabit Ports - Gigabit Router with 4 Gigabit LAN ports, ideal for any internet plan and allow you to directly connect your wired devices
- Boosted Coverage - Four external antennas equipped with Beamforming technology extend and concentrate the Wi-Fi signals
- MU-MIMO technology - (5GHz band) allows high speeds for multiple devices simultaneously
- Access Point Mode - Supports AP Mode to transform your wired connection into wireless network, an ideal wireless router for home
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
