At a Glance#
Product : eufy Security SoloCam S340
Brand : eufy Security
Best For : Homeowners wanting wire-free 360° outdoor surveillance with no recurring costs
Protocol : WiFi 2.4GHz
Buy Now : View on Amazon
Key Highlights:
- Dual-lens system captures 3K wide-angle and 2K telephoto for detail at distance
- Solar-powered with SolarPlus technology — 2 hours of sun delivers all-day power
- Pan and 70° tilt eliminate blind spots — though eufy's own US product page specifies the head at both 355° and 360°
- On-device AI detects humans and vehicles; eufy's landing page prints a 95% stat block labelled Accurate Alerts
- 8GB local storage included, expandable to 16TB with optional HomeBase S380
- eufy publishes no IP ingress rating for this model — weather-resistant, not certified submersion-proof
Who Should Buy This#
The eufy SoloCam S340 hits a sweet spot for homeowners who want outdoor surveillance without running cables or paying monthly subscriptions. It delivers dual-lens 3K + 2K resolution, a removable solar panel, pan-and-tilt coverage and on-device detection, and eufy's own spec table lists "Monthly Fee: No".
Perfect for:
- Homeowners with large yards who need 360° coverage and can't run power cables to every corner of their property
- Renters who want a fully wireless setup they can mount, move, and take with them without leaving holes in walls
- Privacy-focused users who want AI detection and local-only storage without footage leaving their home network
- Budget-conscious families who refuse to pay monthly cloud fees but still want smart detection and detailed zoom
Design & Build Quality#
The SoloCam S340 uses a compact dome design with the dual-lens array housed in a rotating black module beneath a white wall-mount bracket. The integrated solar panel sits on top, angled to catch sunlight throughout the day. The whole unit mounts with a single bracket and can be repositioned without tools.
Build quality is solid, though eufy is vaguer about it than most rivals. Its spec table gives "Weather Protection: Yes" and its landing page says the camera can sit outdoors "without worrying about rain, hail, snow, or bright sunshine" — but eufy publishes no IP ingress rating for the S340 on its US or Canadian product page, on the SoloCam S340 landing page, in any of the eight regional quick-start guides, in the multilingual user manual, or on the Amazon listing. (eufy does attach IP67 to other SoloCams — the S220 and S230/S40 — but never to this one.) Treat it as weather-resistant for normal outdoor mounting and do not assume it survives submersion.
The operating range is published twice and the two figures differ: eufy's product spec table says -4°F to 122°F (-20°C to 50°C), while its SoloCam S340 landing page says -4°F to 140°F (-20°C to 60°C). Plan around the lower number.
Key Features#
Dual-Lens System: See Wide and Zoom Deep#
The SoloCam S340 packs two cameras into one body. The wide-angle lens captures 3K resolution (2880 x 1620 pixels) across a 135° field of view, giving you the big picture of your yard, driveway, or porch. The telephoto lens delivers 2K resolution (2304 x 1296 pixels) with 8x hybrid zoom.
How far that zoom actually reads is a number eufy publishes two ways — and both live on its own US product page, in two different spec datasets for the same SKU. The one that renders as the visible Specs table says "Details at Distance" is "12m(40ft)"; a second block in the same page's source lists "Details at Distance: 15 m (50 ft)", which is also what eufy's Canadian storefront shows and what the SoloCam S340 landing page builds on: "See faces and read license plates clearly at 50 ft (15 m)." The license-plate wording only ever appears against the 50-foot figure. The Amazon listing you would buy from repeats the lower one — "Enhanced Dual-Camera Clarity at Up to 40 ft (12 m)" — so budget for 40 feet.
Both lenses use an f/1.6 aperture. eufy's own wording is simply that "the f/1.6 aperture allows 20% more light" — it names no baseline for the comparison, so read it as brighter than eufy's own smaller-aperture cameras rather than as a class-wide claim.
Solar-Powered: No Wires, No Recharging#
The SolarPlus panel on top is a 2.2 W adjustable, removable unit. eufy's own footnote reads: "The solar panel converts up to 25% of available sunlight into energy, which is an enhancement of 51% compared to competitors, according to laboratory data." A second footnote gives the arithmetic behind the all-day claim: "With optimal sunlight, the removable solar panel can collect and store 800 to 1,200 mAh per day. SoloCam S340 uses 100 to 200 mAh over a day and night of average use." Two hours of direct sunlight daily is enough to stay continuously powered.
If you hit a stretch of cloudy days, the built-in battery provides up to 3 months of standalone power — eufy footnotes that figure as "based on 300 seconds of recording time per day," so a busy driveway will drain it faster. The solar panel is removable, so you can position it separately via cable if the camera's mounting location doesn't get direct sun.
360° Pan and 70° Tilt: No Blind Spots#
Most wireless cameras point in one direction and hope for the best. The SoloCam S340 rotates through a full horizontal circle and tilts 70° vertically, covering every angle around your home. Combined with the 135° wide-angle lens, a single camera can monitor areas that would normally require two or three fixed cameras.
One caveat on the headline number, and it is eufy disagreeing with itself on a single page. The spec table that renders on eufy's US product page prints "Horizon 355°, Vertical 70°"; a second spec dataset in that same page's source prints "Pan and Tilt: Horizontal 360°, Vertical 70°", which is also what the Canadian storefront shows and what the marketing copy claims ("360° of pan and 70° of tilt"). The practical difference is a five-degree seam the 135° lens covers anyway — but the number a US reader sees on the spec table is 355°.
The motorized pan/tilt is controlled from the eufy app; you can drive the view manually, set patrol routes, or let the on-device AI track moving subjects across the camera's full range.
AI Detection: Smart Alerts Without Cloud Fees#
On-device AI processing identifies humans and vehicles. eufy's SoloCam S340 landing page prints a 95% figure under the label Accurate Alerts, with no methodology footnote, and its product page carries the number only in image alt text — so treat it as a marketing stat, not a measured one. It does cut down on false alerts from animals, shadows, or passing headlights. All processing happens locally on the camera, and eufy's spec table lists "Monthly Fee: No".
Connect the camera to a HomeBase S380 — eufy calls it HomeBase 3 in the spec table — and detection gets smarter. eufy's own FAQ on the listing spells out what changes: "the AI will be enhanced with BionicMind, enabling familiar faces, human recognition, vehicle detection, and pet detection." The HomeBase also adds expandable storage up to 16 TB. Do not read that as round-the-clock coverage: eufy's own FAQ answers the question directly — "Battery cameras aren't currently capable of 24/7 recording, even if connected to HomeBase™ 3." The HomeBase is sold separately.
Color Night Vision with Spotlight#
The built-in spotlight activates on motion, illuminating the scene for full-color night footage instead of the grainy black-and-white you get from infrared-only cameras. eufy rates it at 100 lumens and describes the effect as "motion-activated," and it puts the night-time detail range against the lens rather than the lamp: "With an f/1.6 aperture lens, the camera captures 20% more light, showing more details after dark. Details are visible up to 26 ft (8 m) away."
Note that 26 ft is a detail-visibility figure, not a detection figure. eufy's own FAQ answers the range question separately: "The detection range is directly affected by the sensitivity setting. When using the default sensitivity level of 4, the triggering distance is 20 – 26 ft (6 – 8 m) during the day and 13 – 20 ft (4 – 6 m) meters at night." Motion triggering at night starts closer than the daytime figure.
The spotlight doubles as a deterrent. Combined with the 90 dB siren and eufy's "Two-Way Audio and Microphones Covering 30 ft," you can see, speak to, and warn off unwanted visitors from anywhere.
Technical Specifications#
Wide-Angle Resolution : 3K (2880 x 1620 pixels)
Telephoto Resolution : 2K (2304 x 1296 pixels)
Aperture : f/1.6 (both lenses)
Field of View : 135° (eufy spec table)
Pan / Tilt : 355° horizontal per eufy's US spec table; 360° per its Canadian spec table and marketing copy / 70° vertical
Zoom : Hybrid 8x
Details at Distance : 12 m (40 ft) per eufy's US spec table; 15 m (50 ft) per its Canadian spec table and landing page
Night Detail After Dark : Detail visible up to 26 ft (8 m); 100-lumen motion-activated spotlight
Motion Detection Range : 20-26 ft (6-8 m) by day, 13-20 ft (4-6 m) at night, at default sensitivity level 4
Weather Protection : eufy publishes "Weather Protection: Yes" and no IP ingress rating for this model
Operating Temperature : -4°F to 122°F (-20°C to 50°C) per the spec table; -4°F to 140°F (-20°C to 60°C) per the landing page
Local Storage : 8 GB eMMC on-device (up to 16 TB with HomeBase S380 / HomeBase 3)
Solar Panel : Adjustable and removable, 2.2 W
Battery Life : 3 months standalone (eufy footnote: based on 300 seconds of recording per day)
Connectivity : Wi-Fi 2.4 GHz only
Audio : Two-way, covering 30 ft; 90 dB siren
Pros & Cons#
Pros:
- Dual-lens system delivers 3K wide-angle monitoring and a 2K telephoto with hybrid 8x zoom in one body
- 2.2 W removable solar panel: eufy publishes 800-1,200 mAh collected per day against 100-200 mAh used
- Near-complete pan plus 70° tilt covers areas that normally need multiple cameras
- eufy's spec table lists "Monthly Fee: No" — on-device human and vehicle detection and 8 GB of local storage are included
- Weather-tolerant by eufy's own account, and rated down to -4°F
- eufy advertises 95% alert accuracy for the on-device human and vehicle detection
Cons:
- eufy publishes no IP ingress rating for the S340 on any of its own surfaces, so submersion resistance is unknown
- eufy contradicts itself on its own figures: pan (355° vs 360°) and zoom range (40 ft vs 50 ft) differ between two spec datasets on the same product page, and the operating ceiling is 122°F on every spec table but 140°F on the US landing page
- Wi-Fi 2.4 GHz only — no 5 GHz band support
- Familiar-face recognition and pet detection need the separately sold HomeBase S380
- Solar panel needs direct sunlight positioning, which limits some mounting locations
Final Verdict#
Buy it, with the spec sheet in hand. The eufy SoloCam S340 is the rare wire-free outdoor camera that gives you 3K wide plus a 2K telephoto, near-complete pan and 70° tilt, on-device human and vehicle detection, 8 GB of built-in storage and a removable 2.2 W solar panel with no monthly fee. What it does not give you is a clean spec sheet: eufy publishes no IP rating for this model at all, and it contradicts itself on pan, zoom distance and operating temperature across its own spec datasets. Buy it for the hardware, and mount it somewhere sheltered enough that the missing ingress rating never matters.
Our recommendation: Start with one camera on your most vulnerable entry point, then add more as needed — the eufy app manages multiple cameras and, without subscription costs, scaling up doesn't scale your bill. Get it on Amazon: View on Amazon