Reolink CX820From real comments

Verdict distilled from 26 mentions across 12 aspects in comments under product review videos.

Positive sentiment42%
PROS 42%
CONS 58%

Rank based on 26 mentions across 12 aspects

View the verdict as

Buy this if...

  • You want clear color video day and night with strong long-range motion detection
  • You value smart AI event detection like line-crossing for wide-area monitoring
  • You're upgrading from older non-color Reolink cameras and want better video/audio quality overall

What users love

Skip this if...

  • You often shoot in near-total darkness relying on Auto Spotlight, where ghosting is a known issue
  • You need reliable always-on HDR or stable two-way audio without wind noise interference
  • You're concerned about physical tampering, since the turret lacks a locking screw

What users complain about

Compare in seconds

Based on user comments

Best choice
1Mid
Reolink TrackFlex
Wide motion detection coverage
Reolink TrackFlex
Wide motion detection coverage
2
Ubiquiti UniFi Protect G6
Fits well into existing UniFi ecosystemImpressive AI detectionLicense plate capture at useful rangeDetection reliability can drop with scene changesLimited automation scheduling optionsNo native HomeKit support
Ubiquiti UniFi Protect G6
Fits well into existing UniFi ecosystem
Impressive AI detection
License plate capture at useful range
Detection reliability can drop with scene changes
Limited automation scheduling options
No native HomeKit support
3
Hikvision DS-2CD2183G2-IU
Trusted brand replacement choice
Hikvision DS-2CD2183G2-IU
Trusted brand replacement choice
4
Hikvision DS-2CD2385FWD-I
H.265+ image detail and efficiencyStrong day-to-night video comparisonEasy cable installationAuto day/night switching issuesH.265+ app playback compatibilityLens sharpness inconsistency
Hikvision DS-2CD2385FWD-I
H.265+ image detail and efficiency
Strong day-to-night video comparison
Easy cable installation
Auto day/night switching issues
H.265+ app playback compatibility
Lens sharpness inconsistency
5
Ubiquiti UniFi Protect G6 Bullet
Long-range subject and plate detectionAdjustable secure mounting hardwareImpressive AI detectionDetection reliability tied to lighting conditionsNo native HomeKit supportPoE+ requirement questioned
Ubiquiti UniFi Protect G6 Bullet
Long-range subject and plate detection
Adjustable secure mounting hardware
Impressive AI detection
Detection reliability tied to lighting conditions
No native HomeKit support
PoE+ requirement questioned
6
Hikvision DS-2CD2385G1-I
Excellent DarkFighter night visionAdjustable night vision brightnessConcealed IR illuminatorsNo audio recordingIR can be too bright by defaultOversaturated color out of the box
Hikvision DS-2CD2385G1-I
Excellent DarkFighter night vision
Adjustable night vision brightness
Concealed IR illuminators
No audio recording
IR can be too bright by default
Oversaturated color out of the box
7Mid
Ubiquiti UniFi Protect G4 Bullet
Effective smart detectionGood resolution options for real security useReassuring real-world review led to confident purchase1080p mode considered inadequate for securityInconsistent image quality / possible QC issueUnclear smart detection range and night performance
Ubiquiti UniFi Protect G4 Bullet
Effective smart detection
Good resolution options for real security use
Reassuring real-world review led to confident purchase
1080p mode considered inadequate for security
Inconsistent image quality / possible QC issue
Unclear smart detection range and night performance
8
Reolink RLK8-1200D4-A
AI Video Search PraisedLong-Term Brand ReliabilityPositive Ownership ExperienceAwkward Pigtail Cable InstallationInsecure Turret Camera MountingUnclear AI Search Compatibility With Existing Setups
Reolink RLK8-1200D4-A
AI Video Search Praised
Long-Term Brand Reliability
Positive Ownership Experience
Awkward Pigtail Cable Installation
Insecure Turret Camera Mounting
Unclear AI Search Compatibility With Existing Setups
9
Hikvision DS-2CD2183G2-I
Long-Term Brand ReliabilityEventual IR LED Failure
Hikvision DS-2CD2183G2-I
Long-Term Brand Reliability
Eventual IR LED Failure
Best value
10Mid
Reolink CX410
Exceptional color night visionStrong long-term reliability for many usersFlexible power and recording optionsPoor or distorted audio qualityFirmware and feature inconsistencySpotlight glare and washout issues
Reolink CX410
Exceptional color night vision
Strong long-term reliability for many users
Flexible power and recording options
Poor or distorted audio quality
Firmware and feature inconsistency
Spotlight glare and washout issues
You are here
16Mid
Reolink CX820
Color night vision qualityLong-range motion detectionSmart AI event detectionGhosting in Auto Spotlight modeHDR 'ON' option removed by firmwareNo physical locking mechanism
Reolink CX820
Color night vision quality
Long-range motion detection
Smart AI event detection
Ghosting in Auto Spotlight mode
HDR 'ON' option removed by firmware
No physical locking mechanism

Who wins on what

Ranked by what users actually praise

Overall Impression

Color night vision and detection range are the CX820's biggest strengths. Multiple commenters praised how clearly visible footage is both day and night after switching to the CX820, with one buyer ordering it directly after seeing a comparison review. Motion detection reportedly reaches 50 feet, notably farther than other cameras, and one user specifically praised the line-crossing feature for tracking distant road traffic, calling the range and clarity ideal for their setup.

Ghosting under Auto Spotlight remains an unresolved and frequently mentioned flaw. Several commenters describe a persistent ghosting effect when the camera relies on its spotlight with no ambient light present, with one calling the night vision 'smeared' and unacceptable for a camera marketed as low-light capable. Others note this same ghosting problem was reported on earlier CX-series models and are frustrated Reolink hasn't fixed it, calling it the main thing holding back their purchase decision.

Firmware changes to HDR and stability quirks frustrate existing owners. Owners report that removing the permanent HDR-ON option made night footage noticeably worse after a firmware update, with some wanting the old setting restored since automatic HDR doesn't always work as intended. Separately, one user had to configure daily reboots to stop the camera from recording continuously despite that setting being disabled, and another reported the camera repeatedly losing connection to their Reolink Home Hub despite a hardwired setup.

Outdated / Not-accurate data?