# Which outdoor security camera has the highest resolution? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

Which outdoor security camera has the highest resolution?

## Products

### eufy eufyCam S3 Pro 4-Cam Kit + 1 TB Hard Drive
```yaml
product: eufy-eufycam-s3-pro-4-cam-kit-1-tb-hard-drive
brand: eufy
price_gbp: 646.89
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
resolution: 4K UHD 3840 x 2160
night_vision: MaxColor Vision full-color night vision and infrared night vision
field_of_view: 135°
storage_options: 1 TB hard drive, 16GB built-in storage, up to 16TB expandable storage
motion_detection: Radar and PIR with face, human, vehicle, and pet recognition
weather_resistance: IP67 weatherproof
```

- **Price:** £646.89 [^1]
- **Summary:** This four-camera outdoor security system delivers 4K video, full-color night vision, solar charging, and radar-assisted motion detection. It suits homeowners who want detailed coverage around a property with local storage and no monthly fees.
- **Ideal For:** It suits the question Which outdoor security camera has the highest resolution because its cameras record in 4K UHD at 3840 x 2160 and use MaxColor Vision for detailed night footage.

### eufy eufy PoE NVR Security System S4
```yaml
product: eufy-eufy-poe-nvr-security-system-s4
brand: eufy
price_gbp: 588.08
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
resolution: 4K
night_vision: Color night vision with starlight, spotlight, and infrared
field_of_view: 360° PTZ / 122° FOV
storage_options: 2TB hard drive, expandable to 16TB
motion_detection: Human, vehicle, pet, and stranger detection with auto-framing and tracking
weather_resistance: IP65 weatherproof
```

- **Price:** £588.08 [^2]
- **Summary:** The eufy PoE NVR Security System S4 combines 4K cameras, 360° PTZ coverage, color night vision, and AI-powered detection with 24/7 local recording. It suits homeowners and small businesses that need broad outdoor coverage, wired reliability, and expandable storage without relying on a cloud subscription.
- **Ideal For:** This system suits someone seeking the highest-resolution outdoor security camera because it provides 4K video and a 16MP camera system, alongside 360° PTZ coverage and 8× hybrid zoom for identifying details across large areas.
- **Additional Sources:** [^3], [^4]

### eufy eufy SoloCam E42 4-Cam Kit with HomeBase S380
```yaml
product: eufy-eufy-solocam-e42-4-cam-kit-with-homebase-s380
brand: eufy
price_gbp: 514.57
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
resolution: 3840 x 2160
night_vision: Full-color night vision
field_of_view: 360°
storage_options: 16 GB built-in HomeBase storage, expandable up to 16 TB with hard drive, up to 128 GB microSD
motion_detection: AI motion detection and smart tracking
weather_resistance: IP65 weatherproof
```

- **Price:** £514.57 [^5]
- **Summary:** This four-camera outdoor security system provides 4K video, solar-powered operation, AI motion tracking, pan-and-tilt coverage, and a motion-activated strobe and siren. It suits homeowners who want broad outdoor coverage and local storage without monthly fees.
- **Ideal For:** This product specifically suits someone seeking the highest-resolution outdoor security camera because it records in true 4K at 3840 x 2160 and adds 8x zoom for detailed views.
- **Additional Sources:** [^6]

### Reolink OMVI 3i WiFi
```yaml
product: reolink-omvi-3i-wifi
brand: Reolink
price_gbp: 154.37
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
resolution: 18MP total, 5120 x 1920 upper camera, 3840 x 2160 lower camera
night_vision: Infrared night vision up to 100ft and color night vision with spotlights
field_of_view: 180° horizontal, 65° vertical upper camera; 55° horizontal, 30° vertical lower camera
storage_options: microSD up to 512GB, Reolink NVR, FTP, NAS, cloud
motion_detection: People, vehicles, animals, standard motion, line crossing, intrusion, loitering, auto tracking
weather_resistance: IP66
```

- **Price:** £154.37 [^7]
- **Summary:** The Reolink OMVI 3i WiFi combines an 18MP triple-lens system with a 180° panoramic view and a pan-tilt camera for wide coverage and automatic tracking. Infrared and color night vision, AI motion detection, Wi-Fi 6, and flexible local storage make it well suited to large outdoor areas such as driveways, yards, and small commercial properties.
- **Ideal For:** This camera suits the question Which outdoor security camera has the highest resolution because its triple-lens system provides 18MP total resolution, including a 5120 x 1920 10MP panoramic camera and a 3840 x 2160 8MP camera.
- **Additional Sources:** [^8]

### Reolink Argus PT Ultra
```yaml
product: reolink-argus-pt-ultra
brand: Reolink
price_gbp: 99.97
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
resolution: 3840 x 2160 (8MP) at 15fps
night_vision: Color night vision with spotlights and infrared night vision up to 10m
field_of_view: Horizontal 90°, vertical 47°, diagonal 110°
storage_options: Up to 512GB microSD card, Reolink Cloud, Reolink Home Hub, Wi-Fi NVR and FTP
motion_detection: PIR, human, vehicle and pet detection; adjustable up to 10m; 120° horizontal detection angle
weather_resistance: IP65
```

- **Price:** £99.97 [^9]
- **Summary:** The Reolink Argus PT Ultra is a wire-free 4K outdoor camera with motorized 355° pan and 140° tilt, auto-tracking, and dual-mode night vision. Its rechargeable battery and optional solar charging suit homeowners who want flexible outdoor monitoring without installing power cables.
- **Ideal For:** It suits the search for the highest-resolution outdoor security camera because it records in 4K UHD at 3840 x 2160 with an 8MP sensor, while its pan-and-tilt coverage and auto-tracking help keep distant details in view.

### Reolink Altas PT Ultra
```yaml
product: reolink-altas-pt-ultra
brand: Reolink
price_gbp: 131.73
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
resolution: 3840 x 2160 8 megapixels
night_vision: ColorX full-color night vision
field_of_view: Diagonal 110°, horizontal 90°, vertical 50°; pan 355°, tilt 90°
storage_options: microSD up to 512 GB, cloud, FTP, Reolink Home Hub or Home Hub Pro up to 16 TB
motion_detection: PIR, motion, person, vehicle, and animal detection; auto tracking
weather_resistance: IP65
```

- **Price:** £131.73 [^10]
- **Summary:** The Reolink Altas PT Ultra is an outdoor 4K battery-powered PTZ camera with ColorX full-color night vision, automatic tracking, and broad pan-and-tilt coverage. Its long-lasting battery, optional solar charging, and local storage make it well suited to homeowners and small businesses wanting flexible outdoor monitoring without mandatory subscription fees.
- **Ideal For:** It suits the question Which outdoor security camera has the highest resolution because it records in 4K UHD at 3840 x 2160 with 8 megapixels, while its pan-and-tilt movement and auto tracking help keep high-resolution details in view.
- **Additional Sources:** [^11]

---
## References & Sources
[^1]: eufy, accessed 2026-08-28. https://www.eufy.com/products/bundle-t88941w1-1-t80301d1-85-1
[^2]: eufy, accessed 2026-08-28. https://www.eufy.com/products/e8e00121
[^3]: Dell, accessed 2026-08-28. https://www.dell.com/en-us/shop/eufy-4k-poe-nvr-security-system-with-x2-s4-max-cameras-x2-4k-bullet-cameras-and-8-channel-nvr-w-2tb-hdd/apd/ad558174/wifi-and-networking
[^4]: Abt Electronics, accessed 2026-08-28. https://www.abt.com/Eufy-PoE-NVR-Security-System-S4-E8E00122/p/236134.html
[^5]: eufy, accessed 2026-08-28. https://www.eufy.com/products/e8173122
[^6]: Best Buy, accessed 2026-08-28. https://www.bestbuy.com/product/eufy-solocam-e42-4cam-kit-homebase-s380-4k-solar-wireless-outdoor-ai-tracking-pan-tilt-strobe-face-id-16tb-local/JJ858R8QJC
[^7]: Reolink UK Store, accessed 2026-08-28. https://store.reolink.com/gb/plug-in-security-camera/
[^8]: HomeBrainz, accessed 2026-08-28. https://www.homebrainz.shop/en/p/reolink-omvi-3i-wifi
[^9]: Best Buy, accessed 2026-08-28. https://www.bestbuy.com/product/reolink-argus-pt-ultra-b440-4k-8mp-solar-outdoor-wireless-wi-fi-auto-pan-tilt-security-camera-with-64gb-sd-white/J3R84PK34L
[^10]: HomeBrainz, accessed 2026-08-28. https://www.homebrainz.it/p/reolink-altas-pt-ultra
[^11]: Galaxus, accessed 2026-08-28. https://www.galaxus.at/en/s1/product/reolink-altas-pt-ultra-3840-x-2160-pixels-network-camera-55761841