i-PRO X66300-Z3LS vs i-PRO X66300-Z4LS: Specification Comparison
The i-PRO WV-X66300-Z3LS and WV-X66300-Z4LS are both 2MP outdoor PTZ dome cameras in i-PRO's X-series lineup, sharing the same sensor size, frame rate, IR range, enclosure rating, and PoE power class. The primary differentiator is optical zoom ratio — 32x on the Z3LS versus 40x on the Z4LS — along with associated differences in focal length, DORI performance at telephoto distances, and AI analytics feature depth. Both are legitimate cross-shop candidates for perimeter PTZ deployments requiring long-range identification.
In This Guide
How do the imaging specs compare?
Both cameras share a 1/2.8-type CMOS sensor, 60 fps capture, 0.006 Lux minimum illumination, 144 dB Super Dynamic WDR (Level 31), and 350 m IR range at 30 IRE. Where they diverge is optical zoom: the Z3LS delivers 32x (4.25–136 mm, F1.6–F4.4), while the Z4LS steps up to 40x (4.25–170 mm, F1.6–F4.95). The extra zoom costs roughly a third of a stop at full tele, but the horizontal field of view at wide end is identical at 65°, so wide-angle coverage is unchanged.
The DORI numbers reflect the zoom advantage of the Z4LS in practical terms. At telephoto, the Z4LS Detect distance reaches 2,199.9 m versus 1,833.2 m on the Z3LS — a 20% increase. Z4LS Identify (250 ppm) reaches 220.0 m tele versus 183.3 m on the Z3LS, again approximately 20% further. Extra zoom on the Z4LS also yields a higher ceiling: 60x digital extra zoom at 1280×720 versus 48x on the Z3LS. All other imaging controls — AGC range 0–11, DNR 0–255, BLC/HLC 0–31, fog compensation 0–8, privacy zones (32), VIQS (8) — are spec-identical between the two models.
What about installation and environment?
Environmental and mechanical specs are virtually identical. Both carry IP66 and NEMA 4X water/dust resistance, IK10 impact rating per IEC 62262, and wind resistance up to 40 m/s (≈89 mph). Operating temperature range is −50 °C to +60 °C and humidity 10–100% (non-condensing) for both. Power is PoE++ IEEE 802.3bt Class 6 at 45.9 W on both units.
Physical dimensions and mass are the same: φ167 mm × 205 mm (H), dome radius SR 77.5 mm, approximately 3 kg without attachment. Pan/tilt mechanics are also identical: 360° endless pan, −20° to +90° tilt, manual 0.065–150°/s, preset 700°/s pan and 500°/s tilt, 256 preset positions, built-in gyro image stabilizer. The Z3LS spec sheet explicitly notes stainless steel as part of the finish; the Z4LS lists aluminum die cast and polycarbonate dome, with stainless steel not mentioned in the provided specification.
Which fits your VMS and analytics better?
Both cameras support ONVIF Profiles G, M, S, and T; H.265/H.264/MJPEG compression; up to 14 simultaneous users; microSDXC up to 512 GB local storage; and audio via 3.5 mm jacks with G.711/G.726/AAC-LC encoding. Both list Smart Coding, variable GOP, and the same alarm I/O: 3× Alarm IN, 1× Alarm OUT, 1× AUX OUT. The Z4LS IPv4 protocol stack is specified more explicitly and adds SRTP, MQTT, NTCIP, RTP/RTCP, DDNS, and UPnP beyond what is listed for the Z3LS, though the Z3LS spec does not state these are absent — the Z3LS IPv4 list in the provided specification is shorter.
On-camera AI analytics differ in stated breadth: the Z3LS spec lists AI motion, face, people, vehicle, mask, and occupancy detection, plus AI Sound Classification (gunshot, yell, vehicle horn, glass break). The Z4LS spec lists AI video motion, face, people, and vehicle detection plus the same four sound classifications, but does not explicitly mention mask detection or occupancy counting in the provided specification. Both support VMD (4 areas), SCD (1 area), audio detection, up to 32 privacy zones, and auto-tracking, auto-pan, preset sequence, and patrol auto modes.
Which should you choose: the X66300-Z3LS or the X66300-Z4LS?
Our take: The Z4LS is the stronger choice when maximum telephoto reach is the deciding factor: its 40x optical zoom (vs. 32x) extends the tele DORI Identify distance to 220 m versus 183 m — a 20% improvement — and the extra-zoom ceiling rises to 60x at 720p versus 48x. For deployments where analytics breadth matters, the Z3LS specification explicitly includes mask detection and occupancy counting, which are not listed for the Z4LS in the provided specification; buyers relying on those functions should verify Z4LS firmware support before committing. Environmental, power, mechanical, ONVIF, storage, and audio specs are effectively identical across both models. Choose the Z4LS for long-range perimeter coverage where telephoto identification distance is paramount; choose the Z3LS where the broader stated AI analytics set — particularly mask and occupancy — is operationally required.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | i-PRO X66300-Z3LS | i-PRO X66300-Z4LS |
|---|---|---|
| Resolution | 2MP (1920×1080) | 2MP (1920×1080) |
| Image Sensor | 1/2.8-type CMOS | 1/2.8-type CMOS |
| Max Frame Rate | 60 fps | 60 fps |
| Optical Zoom | 32x | 40x |
| Focal Length | 4.25–136 mm (F1.6–F4.4) | 4.25–170 mm (F1.6–F4.95) |
| Extra Zoom (720p) | Max 48x | Max 60x |
| Min Illumination | 0.006 Lux (B&W, 50IRE, F1.6, 1/30s) | 0.006 Lux (B&W, IR LED) |
| IR Range | 350 m @ 30IRE | 350 m @ 30IRE / 250 m @ 50IRE |
| DORI Identify – Tele | 183.3 m / 601.4 ft | 220.0 m / 721.8 ft |
| WDR (Dynamic Range) | Max 144 dB (Super Dynamic On, Level 31) | Max 144 dB (Super Dynamic On, Level 31) |
| AI Analytics | Motion, Face, People, Vehicle, Mask, Occupancy | Motion, Face, People, Vehicle (mask/occupancy not listed in spec) |
| IP / NEMA Rating | IP66, NEMA 4X | IP66, NEMA 4X |
| IK / Impact Rating | IK10 (IEC 62262) | IK10 (IEC 62262) |
| Operating Temperature | -50 °C to +60 °C | -50 °C to +60 °C |
| Power / PoE Class | PoE++ IEEE 802.3bt Class 6, 45.9 W | PoE++ IEEE 802.3bt Class 6, 45.9 W |
| ONVIF Profiles | G / M / S / T | G / M / S / T |
| Edge Storage | microSDXC up to 512 GB | microSDXC up to 512 GB / microSDHC up to 32 GB |
| Audio | 3.5 mm in/out, G.711/G.726/AAC-LC, full duplex | 3.5 mm in/out, G.711/G.726/AAC-LC, full duplex |
| Dimensions | φ167 mm × 205 mm (H) | φ167 mm × 205 mm (H) |
| Weight | Approx. 3 kg (without attachment) | Approx. 3 kg (without attachment) |
| Warranty | 5-Year | 5-Year |
Frequently Asked Questions
Which should you choose: the X66300-Z3LS or the X66300-Z4LS?
The Z4LS is the stronger choice when maximum telephoto reach is the deciding factor: its 40x optical zoom (vs. 32x) extends the tele DORI Identify distance to 220 m versus 183 m — a 20% improvement — and the extra-zoom ceiling rises to 60x at 720p versus 48x. For deployments where analytics breadth matters, the Z3LS specification explicitly includes mask detection and occupancy counting, which are not listed for the Z4LS in the provided specification; buyers relying on those functions should verify Z4LS firmware support before committing. Environmental, power, mechanical, ONVIF, storage, and audio specs are effectively identical across both models. Choose the Z4LS for long-range perimeter coverage where telephoto identification distance is paramount; choose the Z3LS where the broader stated AI analytics set — particularly mask and occupancy — is operationally required.
Is the Z3LS or Z4LS better for long-range license plate or face identification?
The Z4LS has the advantage: its 40x optical zoom extends the tele DORI Identify distance (250 ppm) to 220 m versus 183 m for the Z3LS — approximately 20% further — due to the longer 170 mm maximum focal length compared to 136 mm on the Z3LS.
Do both cameras work in extreme cold and wet outdoor environments?
Yes. Both models are rated IP66 and NEMA 4X for water and dust resistance, IK10 for impact, and operate from −50 °C to +60 °C with humidity up to 100% (non-condensing). Wind resistance is up to 40 m/s on both units.
Does the Z3LS or Z4LS support more AI analytics functions on the edge?
Based on the provided specifications, the Z3LS explicitly lists mask detection and occupancy counting in addition to the AI motion, face, people, and vehicle detection shared by both models. The Z4LS specification does not mention mask or occupancy analytics. Buyers requiring those functions should confirm Z4LS firmware capabilities with i-PRO before purchase.
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