Eufy Wall Light Cam S4 Launches in Japan: 4K Camera and Sensor Light in One Unit for 29,990 Yen

Anker Japan released the Eufy Wall Light Cam S4, a wall light camera that combines a security camera with a sensor light, on August 27, 2026^[1]. It packs a 4K camera, 60GHz radar-based human detection, and a light rated at up to 500 lumens into a single unit, and the solar panel can be mounted separately from the camera body. The price is 29,990 yen including tax. It targets people who would rather not install a porch light and a surveillance camera as two separate devices.

4K and 60GHz Radar Cut Both Missed Shots and False Alerts

The S4 is the successor to the Eufy Solar Wall Light Cam S120, which launched in June 2024^[1]. The clearest change is on the camera side: resolution moves up from Full HD (roughly 2 megapixels) to 4K (roughly 8 megapixels)^[2].

The practical benefit of 4K shows up in digital zoom. Anker says detail holds together at up to 8x zoom, enough to record the face of a distant person or the plate of a parked car^[1][2]. Outdoor cameras run wide angles by necessity, so distant subjects end up small in frame, and a higher base resolution translates directly into usable detail.

At night, Full-Color AI Night Vision corrects dark footage so it can be recorded in color rather than monochrome^[1]. Infrared black-and-white footage strips out clothing and vehicle colors, so keeping color information makes a real difference when reviewing an incident later.

Detection is handled by a 60GHz radar. According to Anker Japan, it reduces false detections by up to 70 percent compared with the previous model^[1]. Notification fatigue is the classic failure mode for outdoor cameras: branches swaying in the wind and passing cats trigger alerts until the owner simply turns notifications off. Distinguishing people, vehicles, and pets by radar is a direct attempt to head that off.

Up to 500 Lumens, With Adjustable Color Temperature

The lighting side was upgraded as well. Maximum brightness rises from 300 lumens to 500 lumens, roughly 1.6 times the previous model^[2]. The S120 offered white LEDs only, while the S4 lets you set brightness anywhere from 1 to 100 percent and color temperature from 2700K to 6500K through the app^[2]. In practice that means you can bias the entrance toward warm or toward daylight to match the exterior.

Security behavior is kept separate. The app allows arming schedules by day of the week and time of day, and when a person is detected during an armed window the camera triggers a siren of up to 100dB along with red and blue warning lights^[1]. The design assumes the unit acts as ordinary residential lighting most of the time and switches into deterrent mode only at night.

Six seasonal lighting themes, including Christmas and Halloween, are also included, leaving a little room for play beyond the security function^[2].

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Eufy Wall Light Cam S4 | (ライト付き屋外防犯カメラ）【ソーラーセキュリティカメラ/ワイヤレス対応/4K画質/連続給電可能/自動点灯/AI動作検知/角度調整/2.4 GHz Wi-Fi/IP65防塵防水/スポットライト/追加料金不要/32GB/車 盗難防止】

Why a Detachable Solar Panel Matters

The headline installation feature is that the bundled 2W solar panel can be detached from the body^[1]. Using the included 3-meter extension cable, the camera can sit under the eaves while the panel goes somewhere with good sun exposure.

Solar-powered outdoor cameras tend to run into a contradiction: the spot worth watching and the spot that gets sunlight are rarely the same. Mount the camera under a shaded eave and it never charges; mount it in the open and you invite backlighting and heat. A detachable panel is a way out of that binary. On the previous model, the solar panel was fixed to the body^[2].

The camera itself tilts up to 45 degrees vertically, so the framing can be angled downward depending on mounting height^[1]. Anker says about 3 hours of direct sunlight secures more than a day of power, and the built-in battery is rated at 10000mAh^[1][2]. Under a usage pattern of roughly 10 notifications per day, a full charge is said to last about 2 months^[1]. Installation is a 3-step process of choosing a position, fixing the mounting plate, and attaching the unit, with no electrical wiring work required^[2].

Local Storage With No Subscription, Plus HomeBase Integration

Recordings are encrypted and stored on 32GB of built-in storage, with no monthly cloud fee^[1]. Ongoing subscription costs are a standard complaint with outdoor cameras, so a setup that closes the loop inside the device itself is easy to reason about on running cost.

Pairing with the separately sold HomeBase S380 expands storage to a maximum of 16TB and adds face recognition AI that distinguishes family members from visitors^[1][2]. Note that both the face recognition feature and Apple Home integration require the HomeBase S380^[2]. Google Home and Alexa support work with the camera on its own.

For outdoor use the unit carries an IP65 dust and water resistance rating and an operating temperature range of minus 20 to 50 degrees Celsius^[2]. Two-way talk is supported, so a resident can respond to visitors or delivery drivers from away^[2].

Key Specifications and Availability

The camera is sold through the Anker Japan official online store, Anker Store retail locations, Amazon.co.jp, Rakuten Ichiba, and selected consumer electronics retailers^[1].

Summary

The Eufy Wall Light Cam S4 folds a 4K camera, 60GHz radar detection, and a 500-lumen tunable light into a single wall-mounted unit. Because the solar panel detaches from the body, it fits homes where the view worth covering and the sunlight do not line up. Footage is encrypted to 32GB of onboard storage with no monthly fee, and adding a HomeBase S380 extends the system to face recognition and larger capacity. It went on sale on August 27, 2026 at 29,990 yen including tax.

Source [1]: https://prtimes.jp/main/html/rd/p/000000669.000016775.html

Source [2]: https://www.ankerjapan.com/pages/eufy-wall-light-cam-s4