ACTi B934 vs ACTi I915: Specification Comparison
The ACTi B934 and ACTi I915 are both 2MP speed dome PTZ cameras from the same manufacturer, making them directly cross-shoppable for buyers evaluating a PTZ upgrade or site deployment. The B934 is rated for indoor use, while the I915 is built for outdoor environments. This comparison examines their imaging performance, installation requirements, and integration capabilities side by side, drawing strictly from the provided specifications to help installers and IT buyers determine which unit best matches their deployment scenario.
In This Guide
How do the imaging specs compare?
Both cameras deliver 2MP resolution, but their optical zoom capabilities differ: the B934 offers 30x optical zoom across a 4.5–135 mm focal length range, while the I915 provides a wider 36x optical zoom. The B934 specifies a 1/2.8" sensor and a minimum illumination of 0.002 lux in color mode (F1.6) and 0.001 lux in B/W with IR on, paired with built-in IR illumination. The I915 is described as having 'Extreme Low Light Sensitivity' and a Day/Night function, but no lux figure, sensor size, or IR range is provided in the available specifications.
On dynamic range, the B934 lists a measured WDR value of 145 dB. The I915 claims 'Extreme WDR' but no dB figure is provided in its specifications. The B934 also specifies a maximum frame rate of 60 fps at 1080p and 30 fps at 4K, with H.264 (Baseline/Main/High) and MJPEG compression. The I915 provides no frame rate or compression format data in the supplied specs.
What about installation and environment?
The B934 is an indoor-rated speed dome with an IK09 impact rating, operating across -20°C to +50°C (-4°F to +122°F). It is powered by PoE+ (IEEE 802.3at) or DC 12V and weighs 1,574 g (3.47 lb). Mounting options include wall, ceiling, pole, pendant, corner, and rack configurations. No IP ingress protection rating is listed for the B934 in the provided specifications.
The I915 is designated for outdoor use and supports ceiling and wall mounting. It accepts PoE power and connects via Ethernet. However, no IP rating, IK rating, operating temperature range, weight, or power input voltage is provided in the available specifications for the I915, limiting a direct environmental durability comparison.
Which fits your VMS and analytics better?
The B934 supports ONVIF Profile S, G, T, Q, and M (M pending future firmware), giving it broad VMS compatibility across a wide range of platforms. It includes built-in edge analytics for VMD (Video Motion Detection) and People Counting. On-board audio is supported via two-way audio with mic-in, line-in, and line-out connections. PTZ control is extensive: 256 presets, 10 preset tours, pan 360° endless, tilt 0–180°, and preset speed up to 720°/sec.
The I915 supports ONVIF Profile S and ONVIF PTZ, which covers core VMS integration and PTZ control. Its analytics are described as 'Built-in Video Analytics' without further detail on specific functions. No audio capability, on-board storage, or preset/tour count is listed in the supplied specifications for the I915.
Which should you choose: the B934 or the I915?
Our take: The B934 is the stronger choice when detailed spec accountability and indoor-environment feature depth matter. First, it documents a 145 dB WDR figure against the I915's unquantified 'Extreme WDR' claim. Second, the B934 provides explicit low-light benchmarks (0.002 lux color / 0.001 lux B/W with IR), whereas the I915 supplies no lux rating. Third, the B934's ONVIF coverage spans five confirmed profiles (S, G, T, Q, and M via future firmware) versus the I915's two (S and PTZ), and adds two-way audio and People Counting analytics not listed for the I915. That said, the I915 claims a 36x optical zoom versus the B934's 30x and is built for outdoor use — making it the logical candidate for exterior perimeter coverage, provided buyers can obtain full environmental specs (IP rating, temperature range, compression format) directly from the manufacturer before committing.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | ACTi B934 | ACTi I915 |
|---|---|---|
| Resolution | 2 MP | 2 MP |
| Camera Type | Indoor Speed Dome PTZ | Outdoor Speed Dome PTZ |
| Optical Zoom | 30x | 36x |
| Focal Length | 4.5–135 mm | — |
| Image Sensor Size | 1/2.8" | — |
| Min. Illumination | 0.002 lux (color, F1.6); 0.001 lux (B/W, IR on) | — |
| IR / Low Light | IR (built-in) | Day/Night; Extreme Low Light (no lux spec) |
| WDR | 145 dB WDR | Extreme WDR (no dB spec) |
| Max Frame Rate | 60 fps @ 1080p; 30 fps @ 4K | — |
| Video Compression | H.264 (Baseline/Main/High); MJPEG | — |
| IK Rating | IK09 | — |
| Operating Temperature | -20°C to +50°C (-4°F to +122°F) | — |
| Power Input / PoE Class | PoE+ (802.3at) / DC 12V | PoE (class unspecified) |
| ONVIF Profiles | Profile S, G, T, Q, M (M via future firmware) | Profile S; PTZ |
| Edge Analytics | VMD; People Counting | Built-in Video Analytics (detail not specified) |
| Audio | Two-way; Mic-in; Line-in; Line-out | — |
| PTZ Presets / Tours | 256 presets; 10 preset tours | — |
| Mount Types | Wall; Ceiling; Pole; Pendant; Corner; Rack | Ceiling; Wall |
| Weight | 1,574 g (3.47 lb) | — |
Frequently Asked Questions
Which should you choose: the B934 or the I915?
The B934 is the stronger choice when detailed spec accountability and indoor-environment feature depth matter. First, it documents a 145 dB WDR figure against the I915's unquantified 'Extreme WDR' claim. Second, the B934 provides explicit low-light benchmarks (0.002 lux color / 0.001 lux B/W with IR), whereas the I915 supplies no lux rating. Third, the B934's ONVIF coverage spans five confirmed profiles (S, G, T, Q, and M via future firmware) versus the I915's two (S and PTZ), and adds two-way audio and People Counting analytics not listed for the I915. That said, the I915 claims a 36x optical zoom versus the B934's 30x and is built for outdoor use — making it the logical candidate for exterior perimeter coverage, provided buyers can obtain full environmental specs (IP rating, temperature range, compression format) directly from the manufacturer before committing.
Is the B934 or I915 better for low-light performance?
Based on the provided specifications, the B934 is the only model with documented low-light figures: 0.002 lux in color mode and 0.001 lux in B/W with IR active. The I915 is described as having 'Extreme Low Light Sensitivity' and a Day/Night function, but no lux value is listed in its specifications, making a direct numerical comparison impossible.
Which camera has the longer zoom reach?
The I915 specifies a 36x optical zoom, compared to the B934's 30x optical zoom (4.5–135 mm). The I915's additional zoom range may benefit large outdoor perimeters, but no focal length range in millimeters is provided for the I915 in the available specifications.
Can both cameras integrate with my existing ONVIF-compliant VMS?
Both cameras declare ONVIF compliance. The B934 supports ONVIF Profile S, G, T, Q, and M (M via future firmware), covering a broad range of recording, PTZ, and metadata functions. The I915 supports ONVIF Profile S and ONVIF PTZ. Buyers relying on ONVIF Profile G (edge recording) or Profile T (H.265/metadata) should note those profiles are only confirmed for the B934 in the supplied specifications.
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