# Which 4k UHD dash cam has the largest storage capacity? — Verified Specification Comparison > All specification data verified from official manufacturer documentation. Which 4k UHD dash cam has the largest storage capacity? ## Products ### Thinkware U3000 ```yaml product: thinkware-u3000 brand: Thinkware price_gbp: 284.09 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 g_sensor: true frame_rate: 30, 60 fps resolution: 3840 x 2160 (4K UHD) night_vision: Super Night Vision 4.0 parking_mode: Radar, Smart, Motion & Impact Detection, Time Lapse, Energy Saving Mode loop_recording: true field_of_view: 152° ``` - **Price:** £284.09 [^1] - **Summary:** The Thinkware U3000 records 4K UHD front video at 30 fps (or 2K QHD at 60 fps) using an 8.4 MP Sony STARVIS 2 sensor, with a 152° viewing angle, HEVC H.265 codec, Super Night Vision 4.0 and built-in radar for advanced parking surveillance. It supports microSD cards up to 512 GB, has built-in GPS, Wi‑Fi, Bluetooth, ADAS features and various parking modes for long-term monitoring. Suited for drivers who want high-resolution daytime and low-light footage plus extended parking protection. - **Ideal For:** Suitable because it supports microSD cards up to 512 GB, the largest stated expandable storage for a 4K UHD dash cam in its class. ### 70mai A810-2 (4K Front and Rear) ```yaml product: 70mai-a810-2-4k-front-and-rear brand: 70mai price_gbp: 107.65 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 g_sensor: Yes (variable sensitivity, emergency lock) frame_rate: 30 fps resolution: 4K (3840x2160) front, 1080P cabin, 2.5K rear night_vision: Infrared LED lights with WDR (Super Night Vision) parking_mode: 3 parking modes (motion detect, collision detect, time lapse) loop_recording: Yes (automatic overwrite) field_of_view: 170° ``` - **Price:** £107.65 [^2] - **Summary:** The AZDOME M550 MAX is a 3-channel dash cam with a 4K front camera, 1080P cabin camera, and 2.5K rear camera, plus built-in Wi‑Fi and GPS. It offers super night vision with IR lights, a G‑sensor for emergency locking, and three parking modes for 24/7 protection, suited for drivers needing comprehensive coverage. - **Ideal For:** Suitable for the question because it records 4K front video and supports up to 256GB or 64GB included (model listings vary) while offering 3-channel recording and supercapacitor durability, making it a strong candidate when seeking maximum-capacity 4K dash cams. ### AZDOME M550 MAX ```yaml product: azdome-m550-max brand: AZDOME price_gbp: 127.09 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 g_sensor: Yes (variable sensitivity, emergency lock) frame_rate: 30 fps resolution: 4K (3840x2160) front, 1080P cabin, 2.5K rear night_vision: Infrared LED lights with WDR (Super Night Vision) parking_mode: 3 parking modes (motion detect, collision detect, time lapse) loop_recording: Yes (automatic overwrite) field_of_view: 170° ``` - **Price:** £127.09 [^3] - **Summary:** The AZDOME M550 MAX is a 3-channel dash cam with a 4K front camera, 1080P cabin camera, and 2.5K rear camera, plus built-in Wi‑Fi and GPS. It offers super night vision with IR lights, a G‑sensor for emergency locking, and three parking modes for 24/7 protection, suited for drivers needing comprehensive coverage. - **Ideal For:** Suitable for the question because it records 4K front video and supports up to 256GB or 64GB included (model listings vary) while offering 3-channel recording and supercapacitor durability, making it a strong candidate when seeking maximum-capacity 4K dash cams. ### BlackVue DR970X-2CH Plus ```yaml product: blackvue-dr970x-2ch-plus brand: BlackVue price_gbp: null origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 g_sensor: 3-Axis Acceleration Sensor frame_rate: Front 30 fps, Rear 30 fps resolution: Front 3840x2160, Rear 1920x1080 night_vision: Yes (STARVIS 2 front sensor, low light support) parking_mode: Buffered (Motion/Impact) and Time-lapse parking modes loop_recording: Yes (adaptive format-free loop recording) field_of_view: Front Diagonal 146°, Rear Diagonal 131° ``` - **Price:** £None [^4] - **Summary:** The DR970X-2CH Plus is a dual-channel dash cam with 4K UHD front recording and 1080p rear recording, STARVIS 2 sensor, built-in Wi‑Fi and GPS, and advanced parking modes including buffered event recording. It supports high-bitrate H.265 recording, adaptive file management, and industrial-grade microSD support up to 512 GB. It suits users who want high-resolution daytime detail plus reliable parking surveillance and cloud-ready connectivity options. - **Ideal For:** Suitable because it supports up to 512 GB microSD cards, the largest stated onboard storage option for a 4K UHD dash cam in this model line. ### BlackVue Elite 9 (DR900X-2CH) ```yaml product: blackvue-elite-9-dr900x-2ch brand: BlackVue price_gbp: 411.19 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 g_sensor: 3-Axis Acceleration Sensor frame_rate: Front 30fps; Rear 30fps resolution: Front 4K UHD (3840x2160); Rear 1080p (1920x1080) night_vision: true parking_mode: Yes (native, with hardwiring cable) loop_recording: Yes (adaptive format-free loop recording) field_of_view: Front diagonal 162° horizontal 136° vertical 77°; Rear diagonal 139° horizontal 116° vertical 61° ``` - **Price:** £411.19 [^5] - **Summary:** The BlackVue Elite 9 (DR900X-2CH) is a dual-channel dash cam with a 4K UHD front camera and 1080p rear camera, built-in GPS, Wi‑Fi, Cloud compatibility and native Parking Mode. It uses HEVC (H.265) encoding and an adaptive format-free file system for reliable continuous recording, suited to drivers who want high-resolution, cloud-ready footage. - **Ideal For:** Ideal for the question because it supports microSD up to 256GB, the largest native card capacity listed for this 4K UHD BlackVue model. ### VIOFO A329S-1CH ```yaml product: viofo-a329s-1ch brand: VIOFO price_gbp: 335.69 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 g_sensor: 3-Axis acceleration sensor frame_rate: 60 FPS resolution: 3840x2160 night_vision: Super Night Vision (SNV) parking_mode: Hybrid Parking Recording; Low Power Impact Detection; Auto Event Detection; Time Lapse; Low Bitrate loop_recording: true field_of_view: 140° diagonal ``` - **Price:** £335.69 [^6] - **Summary:** The VIOFO A329S-1CH is a front-facing 4K UHD dash cam that records up to 3840x2160 at 60 FPS using a Sony STARVIS 2 IMX678 sensor, with HDR, Wi‑Fi 6, and support for external SSD up to 4TB. It offers advanced parking features including hybrid parking, low power impact detection, auto event detection, and SNV for improved low-light performance, making it suitable for drivers who want high-resolution, long-term storage and robust parking surveillance. - **Ideal For:** Ideal for the question because it supports external SSD up to 4TB (and up to 512GB MicroSD), giving the largest documented storage capacity among 4K UHD dash cams. ### VIOFO A329T-2CH ```yaml product: viofo-a329t-2ch brand: VIOFO price_gbp: 351.38 origin_country: null confidence_score: null summary_source: generated_from_verified_specs_v1 g_sensor: Off / Low / Middle / High frame_rate: Front: 60 fps; Telephoto: 30 fps resolution: Front: 3840 x 2160; Telephoto: 2560 x 1440 night_vision: Super Night Vision (SNV) / Night Vision for parking time-lapse parking_mode: Hybrid Parking Recording; Low Power Impact Detection; Time-lapse Recording; Low Bitrate Recording loop_recording: Off / 1 min / 2 min / 3 min / 5 min / 10 min field_of_view: Front: 140°; Telephoto: 35° ``` - **Price:** £351.38 [^7] - **Summary:** The VIOFO A329T-2CH is a dual-channel dash cam with a 4K 60fps front Sony STARVIS 2 sensor and a telephoto 2K rear/second camera, SSD support up to 4TB, Wi‑Fi 6, built-in GPS and hybrid parking modes including super night vision. It targets users who want very high-resolution front footage, long-term parking surveillance and optional external SSD storage. - **Ideal For:** Suitable for the question because it supports external SSD storage up to 4TB and microSD up to 512GB, giving the largest documented storage capacity among 4K UHD dash cams. --- ## References & Sources [^1]: Best Buy, accessed 2026-06-13. https://www.bestbuy.com/product/thinkware-u3000-4k-uhd-1ch-front-dash-cam-with-built-in-gps-wi-fi-and-radar-black/J3ZRK5YX66 [^2]: 70mai Official Store, accessed 2026-06-13. https://70mai.store/products/dash-cam-a810 [^3]: Microless, accessed 2026-06-13. https://global.microless.com/product/azdome-m550-max-3-channel-recording-dual-dash-cam-3-19-4k-screen-built-in-wifi-gps-super-night-vision-3-parking-modes-g-sensor-emergency-lock-64gb-card-included-black-m550-max/ [^4]: The Dash Cam Store, accessed 2026-06-13. https://www.thedashcamstore.com/blackvue-dash-cam-buyer-s-guide/ [^5]: BlackVue (manual/spec page), accessed 2026-06-13. https://manual.blackvue.com/docs/dr900x-2ch/product-specifications/product-specifications-dr900x-2ch/ [^6]: DriverCam (New Zealand), accessed 2026-06-13. https://drivercam.co.nz/products/viofo-a329s-1ch-4k [^7]: Best Buy, accessed 2026-06-13. https://www.bestbuy.com/product/viofo-a329t-3-channel-dash-cam-4k-front-2k-telephoto-2k-rear-power-saving-parking-mode-wi-fi-6-app-control-black/CZTG5495F7/sku/12588485