The Ring Video Doorbell 2 occupies a specific and deliberate position in Ring’s product hierarchy: it is the first Ring doorbell to offer a removable, quick-release battery pack while retaining the option for hardwired installation, and the first in its generation to deliver 1080p HD video. Understanding what the Ring Video Doorbell 2 actually is at the level of its hardware specifications, dimensional constraints, and included accessories is the prerequisite for every installation decision, compatibility assessment, and troubleshooting process that follows ownership.
This reference document compiles every published and independently verified technical specification for the Ring Video Doorbell 2, organized by system category, with contextual explanation of what each specification means for real-world installation and performance.
PHYSICAL DIMENSIONS AND WEIGHT
The Ring Video Doorbell 2 shares a form factor with the original Ring Video Doorbell but incorporates internal changes that affect its weight and mounting plate design.
Height: 4.98 inches (126.5 mm)
Width: 2.43 inches (61.7 mm)
Depth: 1.09 inches (27.7 mm)
Weight (unit only, without battery): 10.4 oz (295 g)
Weight (unit with battery installed): 12.8 oz (363 g)
The depth of 1.09 inches is the measurement at the device body; the rear mounting plate adds additional standoff from the wall surface. On a flat wall installation, the combined depth including the mounting plate positions the doorbell button face approximately 1.3 to 1.5 inches from the wall surface.
The mounting plate footprint is slightly smaller than the device face, meaning the device overhangs the plate perimeter on all sides. This overhang is by design it creates a weather seal when the device is pressed against the wall and allows the security screw at the bottom to be accessed from beneath the device face rather than requiring the device to be removed.
CAMERA AND VIDEO SPECIFICATIONS
Video resolution: 1080p HD (1920 × 1080 pixels)
Field of view (horizontal): 160 degrees
Field of view (vertical): Not independently specified by Ring; approximately 90-100 degrees based on the 1:1 aspect ratio crop used in the live view
Live view aspect ratio: As of current firmware, Ring crops the native sensor output to 16:9 for standard view and 1:1 (square) for the enhanced view
Frame rate: 30 fps under normal conditions; variable frame rate during bandwidth-constrained streaming
Night vision: Infrared (IR) LEDs, automatic activation in low light
Night vision range: Approximately 15 feet (4.6 meters) under the manufacturer’s specified conditions; practical range in open environments is typically 10–12 feet to the point where facial recognition is reliable
Color night vision: Not supported (IR night vision only black and white image)
HDR (High Dynamic Range): Not supported on Ring Video Doorbell 2 (introduced on later Ring Pro and Ring 3/4 models)
Video compression: H.264
Audio: Two-way audio, built-in microphone and speaker
The 160-degree horizontal field of view is among the widest available in the Ring doorbell lineup at the time of the Doorbell 2’s release. This wide angle is both an advantage (covering a broad area in front of the door, including approaching visitors from an angle) and a source of geometric distortion at the frame edges, a characteristic barrel distortion that is inherent to wide-angle lenses and cannot be corrected through camera settings.
MOTION DETECTION SPECIFICATIONS
Motion detection technology: Passive Infrared (PIR) sensors
PIR sensor count: The Ring Video Doorbell 2 uses multiple PIR sensor zones across a defined detection area
Motion detection range: Up to 30 feet (9.1 meters) from the device
Horizontal detection angle: Approximately 155 degrees
Motion zones: Customizable via the Ring app; up to three independent motion zones can be defined
Motion sensitivity: Adjustable in the Ring app (five-step slider)
People Only Mode: Supported (uses Ring’s AI processing in the cloud to distinguish human motion from other triggers available on Ring Protect subscription)
Advanced Motion Detection: Supported (zones + sensitivity + people-only combination)
The PIR sensor array detects changes in infrared radiation across its field, the heat signature differential between a moving warm body and the ambient background. This means PIR-based detection is inherently subject to environmental conditions: on cold days, a warm person creates a stronger differential and is detected at greater range; on hot summer days where ambient temperature approaches body temperature, detection range decreases. Wind-blown foliage that creates thermal turbulence can also generate false motion events. The detailed architecture of the PIR sensor array, its sensor positioning, Fresnel lens design, and sensitivity characteristics are covered in the companion guide The Passive Infrared (PIR) Motion Sensors Inside Ring Doorbell 2.
POWER SPECIFICATIONS
The Ring Video Doorbell 2 is a dual-power device; it can operate from its internal quick-release battery pack or from a hardwired connection to an existing doorbell transformer.
Battery specifications:
Battery type: Proprietary quick-release lithium-ion rechargeable pack
Battery capacity: 6,040 mAh (3.3V nominal, approximately 19.9 Wh)
Battery voltage: 3.3V nominal
Charging method: USB Micro-B connector on the battery pack itself (not on the device body)
Charging time (0–100%): Approximately 5-10 hours from a standard 5V USB charger
Battery life: 6-12 months under typical use (1-3 activations per day, moderate temperatures), highly variable based on usage pattern, Wi-Fi signal strength, and ambient temperature
Hardwired power specifications:
Accepted input voltage (AC): 8-24V AC
Recommended transformer voltage: 16-24V AC for reliable operation
Minimum transformer voltage: 8V AC (functional but may cause charging inconsistencies)
Frequency: 50/60 Hz
Current requirement: Minimum 30VA transformer capacity recommended
The hardwired connection charges the battery pack while the device is operating; it does not replace the battery as a power source. This means the battery must remain installed even during hardwired operation. The transformer voltage and wiring requirements are examined in detail in the companion guide Choosing the Right Transformer Voltage (16–24VAC) for Ring Doorbell 2 Hardwiring.
CONNECTIVITY AND SMART HOME SPECIFICATIONS
Wi-Fi standard: 802.11 b/g/n
Supported frequency bands: 2.4 GHz only (does not support 5 GHz)
Wi-Fi security protocols: WPA, WPA2
Minimum RSSI for reliable operation: −60 dBm recommended; −70 dBm minimum threshold before video quality and notification reliability degrade
Bluetooth: Not used for primary pairing or operation (some setup flows use Bluetooth LE for initial configuration on specific firmware versions)
Smart home platform integrations: Amazon Alexa (two-way), Google Assistant (limited viewing only), IFTTT
Works with Ring Alarm: Yes
Works with Ring Chime / Ring Chime Pro: Yes
App: Ring (iOS 12.0+ and Android 8.0+)
Ring Protect subscription: Optional, required for video history storage and sharing; basic live view and real-time notifications function without subscription
ENVIRONMENTAL AND OPERATING SPECIFICATIONS
Operating temperature range: −5°F to 120°F (−20°C to 48.5°C)
Battery charging temperature range: 32°F to 113°F (0°C to 45°C) the battery will not charge below freezing, though the device continues to operate on existing battery charge
Water resistance rating: IP55 protected against dust and low-pressure water jets from any direction (not submersion-rated)
UV resistance: Housing is UV-stabilized plastic rated for outdoor installation, but prolonged direct equatorial sun exposure can cause housing discoloration over multi-year periods
The IP55 rating means the Ring Video Doorbell 2 is suitable for covered outdoor installations under an eave, porch overhang, or awning. Direct rain exposure in normal climates is within the rating. Installation in locations subject to sustained high-pressure water exposure (direct spray from a garden hose or pressure washer at close range) exceeds the IP55 protection specification and can introduce moisture into the housing.
AUDIO SPECIFICATIONS
Microphone: Omnidirectional microphone with noise cancellation processing
Speaker: Built-in speaker (power not independently specified by Ring)
Two-way audio: Supported by the Ring app, which allows real-time voice communication with visitors
Audio compression: AAC
COMPLETE BOX CONTENTS
The retail package for the Ring Video Doorbell 2 contains the following items:
1. Ring Video Doorbell 2 unit (1x)
2. Quick-release rechargeable battery pack (1x) installed in the device
3. Mounting bracket (1x) flat mounting plate for standard wall installation
4. Wedge kit (1x) angled mounting accessory for adjusting horizontal camera angle (15-degree horizontal angle adjustment)
5. Level kit (1x) mounting accessory for leveling the device on uneven surfaces (some retail packages include this; verify against your specific purchase)
6. Mounting screws:
- Wood screws for mounting to wood/drywall surfaces (3x or 4x)
- Concrete/masonry screws with wall anchors (3x or 4x)
7. Security screw (T15 Torx, 1x): the tamper-resistant screw that locks the device to the mounting plate at the base
8. T15 Torx screwdriver (1x) specifically sized for the security screw
9. Wire extenders (2x) short wire extensions for connecting existing doorbell wires that are too short to reach the terminal screws
10. Diode (1x) for digital/electronic chime installations (required with most modern digital doorbell chimes to prevent buzzing)
11. USB charging cable (1x) Micro-B USB cable for charging the battery pack
12. Quick start guide (1x)
13. Mounting stencil (1x, in some package variants) paper template for marking drill hole positions
Regional variations: The Ring Video Doorbell 2 is sold in multiple regional variants with different power supplies and mounting hardware. The contents list above applies to the North American (US/Canada) retail package. UK and European packages include region-specific hardware.
Notable items not included:
- USB power adapter (the USB charging cable requires a separate USB charger not included)
- Corner kit (sold separately by Ring; the corner kit provides a 45-degree adjustment for corner installations, distinct from the wedge kit’s 15-degree adjustment)
- Ring Chime (the internal bell ringer accessory is sold separately)
- Additional faceplates (color options beyond the included faceplate are sold separately)
COMPLETE SPECIFICATIONS TABLE
| Specification | Value |
| Height | 4.98 in (126.5 mm) |
| Width | 2.43 in (61.7 mm) |
| Depth | 1.09 in (27.7 mm) |
| Weight (with battery | 12.8 oz (363 g) |
| Video Resolution | 1080p HD |
| Horizontal FOV | 160 degrees |
| Night Vision | Infrared LED, ~15 ft range |
| Motion Detection | PIR, up to 30 ft |
| Motion Zones | Up to 3 (customizable) |
| Battery Capacity | 6,040 mAh |
| Hardwire Input Voltage | 8–24V AC (16–24V AC recommended) |
| Wi-Fi | 802.11 b/g/n, 2.4 GHz only |
| Water Resistance | IP55 |
| Operating Temperature | −5°F to 120°F |
| Audio | Two-way, noise-cancelling mic |
| Security Screw | T15 Torx |
