Reolink RLC 510A vs Reolink RLC 520A: Bullet or Dome for Your Wall

The Reolink RLC 510A and the Reolink RLC 520A are two 5MP PoE security cameras built on the same foundation, and the choice between them comes down to housing shape and detection features. The 510A is the bullet-shaped option with a broader smart-detection package, while the 520A is the dome that adds human, vehicle and animal recognition for a little less money. Readers who want the short answer can check the table below, then jump to the full comparison.

Both cameras run on Power over Ethernet, both record 5MP video, and both support a microSD card up to 512GB. Neither needs a separate power cable, which makes either one a reasonable fit for a wired install on a home or small business.

Reolink RLC 510A and RLC 520A Side by Side

Product	Key Spec	Best Use	Price Tier
REOLINKSmart Detection, Time-Lapse, 100ft IR Night Vision, Work with Smart Home, Support 512GB SD Card, Surveillance Outdoor Indoor 5MP PoE Security Camera RLC-510A, 100ft IR Night Vision	5MP PoE bullet, 100ft IR, smart detection, 512GB SD card	Wide outdoor coverage where a visible camera is a deterrent	Budget
REOLINKSmart Human/Vehicle/Animal Detection,100ft HD IR Night Vision, Work with Smart Home, Up to 512GB microSD Card, Time-Lapse RLC-520A 5MP PoE Security Camera, Outdoor Dome with IR Night Vision	5MP PoE dome, 100ft IR, human/vehicle/animal detection, 512GB microSD	Discreet mounting under eaves or low ceilings	Budget

REOLINK RLC 510A 5MP PoE Security Camera

Type: Bullet-style outdoor/indoor security camera
Resolution: 5MP
Power Source: PoE (Power over Ethernet)
Night Vision: 100ft IR
Storage: Supports 512GB SD card
Smart Features: Smart detection, time-lapse, smart home compatibility

The 510A is the cylindrical bullet camera in this pair, and its shape is the first thing buyers notice. A bullet housing points along a single axis, so it aims naturally at a driveway, a side gate or a long stretch of yard. The visible body also works as a deterrent in a way a dome does not, because anyone approaching can see exactly where the lens is pointed.

Inside, the camera delivers 5MP footage and 100ft of infrared range, which covers most residential driveways and back gardens after dark. The smart detection and time-lapse features round out a package that suits buyers who want a straightforward wired camera with a few extras rather than a full analytics platform.

Trade-off: A bullet housing is harder to tuck away and more exposed to weather and tampering than a dome, so it is a poor fit for anyone who needs a camera that blends into the architecture.

Check the current price on Amazon

REOLINK RLC 520A 5MP PoE Security Camera

Type: Dome-style outdoor security camera
Resolution: 5MP
Power Source: PoE (Power over Ethernet)
Night Vision: 100ft HD IR
Storage: Up to 512GB microSD card
Smart Features: Human/vehicle/animal detection, time-lapse, smart home compatibility

The 520A is the dome, and the housing changes how it is installed and how it reads to a passerby. A dome sits closer to its mounting surface, which makes it a natural fit under eaves, on porch ceilings or anywhere a low-profile camera is preferable to a visible barrel. The trade-off in shape is a slightly narrower field of aim, since a dome adjusts within its enclosure rather than swinging freely.

Its standout feature is the detection suite: the camera distinguishes between humans, vehicles and animals rather than triggering on any motion. That cuts down on alerts from moving branches and passing cats, which matters for anyone who has grown tired of constant notifications. The 100ft IR range and 512GB card support match its sibling, so the practical difference is the analytics and the housing.

Trade-off: A dome’s curved cover can collect dust and water spots that soften the image over time, so it needs more frequent cleaning than a flat-faced bullet.

Check the current price on Amazon

The Differences That Matter

The side-by-side table above shows how close these two cameras are on paper. Resolution, PoE power, IR range and card capacity are effectively identical, so the decision rests on three dimensions: housing shape, detection intelligence and price positioning.

Housing shape. The 510A’s bullet body aims freely and reads as a visible deterrent, which suits open outdoor positions. The 520A’s dome mounts flush and disappears into the architecture, which suits covered positions where discretion matters more than presence. Neither is better in the abstract; the install location decides.

Detection intelligence. This is the clearest functional gap. The 520A names human, vehicle and animal detection in its feature set, which means alerts can be filtered by object type. The 510A lists smart detection without that breakdown, so buyers who want fewer false alarms from pets and passing traffic will lean toward the dome.

Price tier and popularity. The 520A sits at a slightly lower price point and carries the stronger recent sales volume, which suggests it is the more popular entry into Reolink’s 5MP PoE line. The 510A still sells well, but the dome currently has the momentum. Neither camera is expensive, so the difference is small in absolute terms.

Night vision. Both cameras quote 100ft of IR range, so low-light coverage is a wash. The 520A’s listing specifies "HD" IR, but the practical reach is the same figure, and buyers should not expect one to see meaningfully further than the other.

Which Should You Buy?

Choose the RLC 510A if the camera will be mounted in an open, visible position where a bullet housing aims easily and acts as a deterrent. It suits a driveway, a fence line or a long side yard, and it suits buyers who want a simple wired camera without tuning object-detection rules.

Choose the RLC 520A if the camera will sit under an eave or a porch ceiling where a low-profile dome looks better and is harder to tamper with. It is also the better pick for anyone who wants alerts filtered to humans, vehicles and animals rather than raw motion, and it currently costs a little less.

Buyers who are still torn should default to the dome: the detection suite is the more useful long-term feature, and the housing works in more positions around a typical home.

FAQ

1. Is the Reolink RLC 510A or RLC 520A better for night vision?
   Both list 100ft of IR night vision, so the two are effectively equal after dark. The choice between them should rest on housing and detection, not on low-light reach.

2. Do both cameras need a PoE injector or switch?
   Yes. Both are PoE cameras, which means they draw power over the Ethernet cable and need a PoE switch or injector rather than a standard wall outlet. That is the main wiring consideration for either model.

3. Can the RLC 520A tell a person from a car?
   The 520A’s name explicitly lists human, vehicle and animal detection, so it can classify what triggered an alert. The 510A lists smart detection without that breakdown.

4. Which one is easier to mount under an eave?
   The 520A dome is the easier fit under an eave or porch ceiling because its housing sits closer to the mounting surface. The 510A bullet extends outward and needs more clearance.

5. Do both support a 512GB microSD card?
   Yes. The 510A supports a 512GB SD card and the 520A supports up to a 512GB microSD card, so local storage capacity is the same on both.

6. Which camera is more popular right now?
   The 520A shows the higher recent purchase volume, while the 510A still sells steadily. Popularity is a rough signal of fit, not a measure of image quality.

7. Can either camera work indoors?
   The 510A is explicitly listed for outdoor and indoor surveillance. The 520A is described as an outdoor dome, so it is the better choice for exterior mounting.

Bottom Line

For most buyers, the Reolink RLC 520A is the better pick: it costs less, filters alerts by human, vehicle and animal, and its dome housing fits neatly under eaves and porch ceilings. The REOLINK RLC 520A 5MP PoE Security Camera is the one to check first. Buyers who need a visible, freely aiming camera on an open wall should still take the REOLINK RLC 510A instead.