i-PRO X66300-Z3S vs i-PRO X66300-Z4LS: Specification Comparison
Both the i-PRO WV-X66300-Z3S and WV-X66300-Z4LS are 2MP outdoor PTZ dome cameras sharing the same 1/2.8-type CMOS sensor, identical physical form factor, and the same Ambarella CV25m SoC. They target the same class of buyer — integrators who need rapid-slew AI PTZ performance in harsh outdoor environments. The key differentiators are optical zoom range, IR illumination capability, AI analytics breadth, power draw, and minimum illumination spec context, each of which meaningfully affects site selection and project scope.
In This Guide
How do the imaging specs compare?
Both cameras use an identical 1/2.8-type CMOS sensor with a 5.57 mm × 3.13 mm scanning area, identical Super Dynamic WDR at a maximum of 144 dB (Level 31), and the same shutter speed range of 1/60 to 1/10000s. Where they diverge is in lens reach: the Z3S delivers 32x optical zoom over a 4.25–136 mm focal length, extendable to 48x digital at 1280×720, while the Z4LS steps up to 40x optical over a 4.25–170 mm focal length, extendable to 60x digital at 1280×720. DORI performance reflects this directly — at Tele, the Z4LS identifies at 220.0 m vs. the Z3S at 183.3 m, and detects at 2,199.9 m vs. 1,833.2 m for the Z3S.
On low-light performance, both share a 0.006 Lux minimum illumination figure, though the Z3S specifies this at BW/50IRE/F1.6/1/30s with no IR, while the Z4LS specifies 0.006 Lux B&W with IR LED active. The Z4LS adds a built-in IR LED illuminator rated at 350 m at 30IRE and 250 m at 50IRE — the Z3S spec sheet does not list an IR range figure in the provided specifications (IR Distance listed as 3.0 m, which appears to represent minimum focus range rather than illumination distance). The Z4LS also lists a wider angular field of view range: 2.0°–65° (H) versus the Z3S at 65° wide only (full telephoto angular field of view not explicitly stated in the provided Z3S spec). Both support Active ClearSight and built-in gyro-based image stabilization.
What about installation and environment?
The two cameras share an identical physical footprint: φ167 mm × 205 mm (H), approximately 3 kg without attachment, aluminum die cast body with polycarbonate dome, and a tamper-resistant enclosure. Both are rated IP66 and IK10 (per IEC 62262), and both carry a NEMA-TS2 listing alongside NEMA 4X (stated explicitly for the Z4LS; the Z3S spec lists IP66 and NEMA 4X in its feature tags). Operating temperature range is identical at -50°C to +60°C with 10–100% non-condensing humidity, and both are rated for wind resistance up to 40 m/s (~89 mph).
Power requirements differ: the Z3S draws 37.8 W via PoE++ (IEEE 802.3bt, Class 6), while the Z4LS draws 45.9 W via PoE++ (IEEE 802.3bt, Class 6). The additional 8.1 W on the Z4LS is attributable to the IR LED subsystem and longer-throw lens drive. Both require a PoE++ Class 6 midspan or switch port — standard PoE (802.3af) or PoE+ (802.3at) cannot power either unit. Both include 3x alarm I/O terminals; the Z4LS spec additionally lists a discrete Alarm OUT and AUX OUT terminal in its I/O summary, whereas the Z3S lists 3 combined alarm I/O terminals.
Which fits your VMS and analytics better?
Both cameras support ONVIF Profiles G, M, S, and T, and both operate on the same Ambarella CV25m SoC with H.265/H.264/MJPEG compression, identical Smart Coding GOP control options, and the same audio codecs (G.726, G.711, AAC-LC). Simultaneous user limit is 14 for both. On-board storage supports microSDHC (up to 32 GB) and microSDXC (up to 512 GB) on both models, with identical recording mode support (Manual, Alarm pre/post, Schedule, Network Failure Backup). IPv4 and IPv6 protocol stacks are identical across both, including SRTP, MQTT, and NTCIP.
AI analytics differ in breadth: the Z3S specifies AI motion, face, people, vehicle, non-mask detection, and occupancy detection, plus AI Sound Classification (gunshot, yell, vehicle horn, glass break). The Z4LS specifies AI Video Motion, face, people, and vehicle detection — non-mask detection and occupancy detection are not listed in its provided specifications. Both include Scene Change Detection (1 area), Video Motion Detection (4 areas), audio detection, and 32 privacy zones. The Z3S audio input spec lists sensitivity range (-51 dB to -38 dB); the Z4LS audio input spec does not list a sensitivity figure in the provided data. Both carry identical safety certifications: UL62368-1, c-UL, CE, IEC62368-1, FCC Part 15 Class A, ICES-003 Issue 7, EN55032, EN55035, and NEMA-TS2.
Which should you choose: the X66300-Z3S or the X66300-Z4LS?
Our take: The X66300-Z4LS is the stronger choice when maximum optical reach and long-range IR illumination are the primary site requirements. It delivers 40x optical zoom versus the Z3S's 32x — a 25% increase in focal length (170 mm vs. 136 mm) — yielding a DORI Identify range of 220.0 m at Tele versus 183.3 m, and adds a rated 350 m IR LED illuminator that the Z3S does not list in its provided specifications. Conversely, the X66300-Z3S is the stronger choice when analytics breadth matters: it adds non-mask detection and occupancy detection not listed in the Z4LS spec, and draws 8.1 W less (37.8 W vs. 45.9 W), which can be decisive when budgeting PoE++ switch port capacity across a large deployment. Both share identical form factor, IK10/IP66 ratings, ONVIF G/M/S/T, and a 5-year warranty, so the decision reduces to zoom reach and IR range versus analytics depth and power budget.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | i-PRO X66300-Z3S | i-PRO X66300-Z4LS |
|---|---|---|
| Resolution | 2MP (1920×1080) | 2MP (1920×1080) |
| Image Sensor | 1/2.8-type CMOS | 1/2.8-type CMOS |
| SoC | Ambarella CV25m | Ambarella CV25m |
| Optical Zoom | 32x (4.25–136 mm) | 40x (4.25–170 mm) |
| Extra / Digital Zoom | Up to 48x @ 1280×720 | Up to 60x @ 1280×720 |
| Min. Illumination | 0.006 Lux (B&W, 50IRE, F1.6, 1/30s, no IR listed) | 0.006 Lux (B&W, IR LED active) |
| IR Illuminator Range | Not specified in provided specs | 350 m (30IRE) / 250 m (50IRE) |
| WDR (Super Dynamic) | Max. 144 dB (Level 31) | Max. 144 dB (Level 31) |
| Max Frame Rate | 60 fps (1920×1080) | 60 fps (1920×1080) |
| DORI Identify (Tele) | 183.3 m / 601.4 ft | 220.0 m / 721.8 ft |
| DORI Detect (Tele) | 1833.2 m / 6014.4 ft | 2199.9 m / 7217.6 ft |
| Pan / Tilt Speed (Preset) | 700°/s pan / 500°/s tilt | 700°/s pan / 500°/s tilt |
| Power Input / PoE Class | PoE++ (802.3bt) Class 6 / 37.8 W | PoE++ (802.3bt) Class 6 / 45.9 W |
| IP / NEMA Rating | IP66, NEMA 4X | IP66, NEMA 4X |
| Impact Rating | IK10 (IEC 62262) | IK10 (IEC 62262) |
| Operating Temperature | -50°C to +60°C | -50°C to +60°C |
| AI Analytics | Motion, Face, People, Vehicle, Non-Mask, Occupancy + Sound Classification | Motion, Face, People, Vehicle (Non-Mask and Occupancy not listed in provided specs) |
| ONVIF Profiles | G / M / S / T | G / M / S / T |
| Edge Storage | microSDHC 4–32 GB / microSDXC 64–512 GB | microSDHC up to 32 GB / microSDXC up to 512 GB |
| Audio | 3.5 mm stereo in/out, -51 to -38 dB sensitivity, G.726/G.711/AAC-LC | 3.5 mm stereo in/out, sensitivity not specified, G.726/G.711/AAC-LC |
| 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-Z3S or the X66300-Z4LS?
The X66300-Z4LS is the stronger choice when maximum optical reach and long-range IR illumination are the primary site requirements. It delivers 40x optical zoom versus the Z3S's 32x — a 25% increase in focal length (170 mm vs. 136 mm) — yielding a DORI Identify range of 220.0 m at Tele versus 183.3 m, and adds a rated 350 m IR LED illuminator that the Z3S does not list in its provided specifications. Conversely, the X66300-Z3S is the stronger choice when analytics breadth matters: it adds non-mask detection and occupancy detection not listed in the Z4LS spec, and draws 8.1 W less (37.8 W vs. 45.9 W), which can be decisive when budgeting PoE++ switch port capacity across a large deployment. Both share identical form factor, IK10/IP66 ratings, ONVIF G/M/S/T, and a 5-year warranty, so the decision reduces to zoom reach and IR range versus analytics depth and power budget.
Is the X66300-Z3S or X66300-Z4LS better for low-light and night surveillance at long range?
Based on the provided specifications, the X66300-Z4LS is the stronger option for long-range night surveillance. It includes a built-in IR LED illuminator rated at 350 m (30IRE) / 250 m (50IRE). The X66300-Z3S does not list an IR illumination range in its provided specifications — its 3.0 m IR Distance entry appears to denote minimum focus range rather than illuminator reach. Both share a 0.006 Lux minimum illumination figure, but the Z4LS specifies this with IR LED active.
Which camera has better AI analytics — the Z3S or the Z4LS?
Based on the provided specifications, the X66300-Z3S lists a broader AI analytics set: AI motion, face, people, vehicle, non-mask detection, occupancy detection, plus AI Sound Classification (gunshot, yell, vehicle horn, glass break). The X66300-Z4LS lists AI Video Motion, face, people, and vehicle detection — non-mask detection and occupancy detection are not listed in its provided specifications. Both include Scene Change Detection and audio detection. If non-mask or occupancy analytics are required, the Z3S is the specified choice.
Do both cameras require PoE++ infrastructure, and is there a meaningful power difference between them?
Yes — both the X66300-Z3S and X66300-Z4LS require PoE++ (IEEE 802.3bt, Class 6) and cannot be powered by standard PoE (802.3af) or PoE+ (802.3at) ports. The Z3S draws 37.8 W and the Z4LS draws 45.9 W — a difference of 8.1 W. On a large multi-camera deployment, this difference affects switch port budget and midspan selection. Both are otherwise wired-only, RJ45 10/100Base-TX, with no wireless option listed in either specification.
Get a Second Opinion on Your Camera Choice
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