Direct answer: The Vantrue S1 Pro Max is the only Vantrue dash cam with dual Sony STARVIS 2 IMX678 sensors — both front and rear cameras capture native 4K (a 4K+2.5K variant also exists) — combined with ADAS (forward collision warning, lane departure, pedestrian detection) and BSD (blind-spot detection). MSRP $349.99 on vantrue.com; promotional pricing reached $179.99 (Dealnews snapshot). The S1 Pro Max is the spec match for buyers who want 2-channel road-focused recording with matched-resolution rear plate capture and retrofit ADAS, rather than the 3-channel cabin-included alternative.
Key Takeaways
- $349.99 MSRP (vantrue.com); promotional pricing reached $179.99 (Dealnews) and $259.99 (Electrosavvy March 2026)
- Dual Sony STARVIS 2 IMX678 — 4K + 4K (variant B0F8BW5HTS) or 4K + 2.5K (variant B0FCDHPNVP)
- ADAS — Forward Collision Warning, Lane Departure Warning, Pedestrian Detection
- BSD — Blind Spot Detection (rear camera + on-device computer vision)
- 2-channel — no cabin camera; road-focused use case
- Optional LTE module for 24/7 remote cloud monitoring (separate purchase, requires SIM data plan)
The S1 Pro Max Spec Sheet (May 2026)
| Spec | Value |
|---|---|
| Channels | 2 (front + rear) |
| Front sensor | Sony STARVIS 2 IMX678 (8MP) |
| Front resolution | 4K (3840×2160) at 30fps |
| Front FOV | 155° |
| Rear sensor | Sony STARVIS 2 (IMX678 on 4K+4K variant) |
| Rear resolution | 4K or 2.5K (variant-dependent) |
| Rear FOV | ~150° (variant-dependent) |
| HDR | Dual STARVIS 2 DCG HDR + PlatePix |
| Cabin camera | ❌ None — 2-channel design |
| ADAS | ✅ FCW + LDW + Pedestrian Detection |
| BSD | ✅ Blind Spot Detection |
| Display | 2.0-inch IPS |
| Wi-Fi | 5GHz |
| GPS | Built-in |
| Voice control | ✅ |
| Parking mode | 24H buffered |
| Power | Supercapacitor |
| microSD max | 1TB |
| Cloud Compatible | ✘ (built-in); optional LTE module for remote monitoring |
| Subscription | None (LTE requires SIM data plan if added) |
| Price (May 2026 MSRP) | $349.99 |
What Dual-4K Means Practically
Most 2-channel dash cams pair a 4K front with a 1080P rear (cost optimization). The S1 Pro Max breaks the pattern by shipping STARVIS 2 IMX678 on both channels in the 4K+4K variant, or STARVIS 2 sensors on both with matched-tier quality in the 4K+2.5K variant.
| Scenario | 4K front + 1080P rear (typical) | Dual STARVIS 2 (S1 Pro Max) |
|---|---|---|
| Front plate at 25 ft night | Sharp | Sharp |
| Rear plate at 25 ft night | Often unreadable | Sharp |
| Rear plate at 30+ ft night | Almost never | Sometimes readable |
| Highway tailgater plate capture | Limited | Strong |
| Limousine paparazzi-style rear angle | Limited | Strong |
| Long-haul tailgating at distance | Limited | Strong |
| Door-ding offending vehicle in parking lot rear | Marginal | Strong |
For drivers whose threat model includes long-range rear plate capture, the S1 Pro Max’s dual-4K (or 4K+2.5K) configuration is the only Vantrue answer. The N4 Pro and N4 Pro S have lower-resolution rear cameras (1080P STARVIS 1 on N4 Pro; 2.5K STARVIS 2 on N4 Pro S).
ADAS Features Explained
ADAS (Advanced Driver Assistance System) features on the S1 Pro Max run on-device using the camera’s image signal processor — no internet required, no cloud upload:
| ADAS feature | What it does | Useful for |
|---|---|---|
| Forward Collision Warning (FCW) | Detects vehicles ahead and warns when closing distance is dangerous | Distracted driving, freeway congestion |
| Lane Departure Warning (LDW) | Detects lane markers and warns when drifting without signaling | Fatigue, distracted driving |
| Pedestrian Detection | Detects pedestrians in the camera’s view and alerts | Urban driving, school zones |
| Blind Spot Detection (BSD) | Detects vehicles in rear blind spots | Highway lane changes |
These features are most valuable in vehicles without factory ADAS — older sedans, used cars, vehicles where the original ADAS doesn’t function correctly. For drivers who already have factory ADAS in their vehicles, the S1 Pro Max’s ADAS is redundant but doesn’t conflict.
Original Research: ADAS-Equipped Dash Cams Across the Vantrue Lineup (May 2026)
Methodology: Each current Vantrue dash cam product page was reviewed for explicit ADAS, FCW, LDW, BSD, and Pedestrian Detection feature listings.
| Model | ADAS (FCW/LDW/Pedestrian) | BSD | Channel count |
|---|---|---|---|
| S1 Pro Max | ✅ All three | ✅ Yes | 2CH |
| S1 Pro | ✅ Partial (FCW, LDW) | ❌ | 2CH |
| N4 Pro | ❌ Not listed | ❌ | 3CH |
| N4 Pro S | ❌ Not listed | ❌ | 3CH |
| N5 | ❌ Not listed | ❌ | 4CH |
| N4 | ❌ Not listed | ❌ | 3CH |
| E3 | ❌ Not listed | ❌ | 3CH |
| N2 Pro | ❌ Not listed | ❌ | 2CH |
Key Findings: - The S1 Pro Max is the only current Vantrue dash cam with the complete ADAS + BSD package — FCW, LDW, Pedestrian Detection, and Blind Spot Detection all listed - The S1 Pro has partial ADAS but no BSD - None of the 3-channel or 4-channel Vantrue models include ADAS — they prioritize cabin coverage over driver-assistance features - The S1 Pro Max occupies a unique position in the lineup: 2-channel with dual STARVIS 2 + ADAS + BSD
Data compiled from vantrue.com product pages, May 20, 2026.
The 4K+4K vs 4K+2.5K Variant Decision
Vantrue ships two SKU variants of the S1 Pro Max:
| Variant | Amazon listing | Front | Rear | Best for |
|---|---|---|---|---|
| 4K+4K | B0F8BW5HTS | IMX678 4K | IMX678 4K | Maximum rear plate readability; matched front/rear quality |
| 4K+2.5K | B0FCDHPNVP | IMX678 4K | STARVIS 2 2.5K | Lower-cost variant with strong rear coverage |
Both variants list dual STARVIS 2 sensors. The 4K+4K variant is the higher-tier choice; the 4K+2.5K is the cost-optimized variant. Both ship ADAS + BSD. For most drivers, the 4K+2.5K variant is sufficient — the rear-camera advantage of 4K vs 2.5K is marginal at the 5-25 foot rear plate distance most relevant for rear-end and parking-mode scenarios.
When the S1 Pro Max vs N4 Pro Decision Matters
| Buyer profile | S1 Pro Max ($349.99) | N4 Pro ($379.99) | Best fit |
|---|---|---|---|
| Wants 4K front + cabin IR + rear | ❌ No cabin | ✅ 3-channel with cabin | N4 Pro |
| Wants matched front/rear 4K | ✅ Dual STARVIS 2 | ❌ Rear is 1080P STARVIS 1 | S1 Pro Max |
| Wants ADAS / BSD | ✅ Full ADAS + BSD | ❌ No ADAS | S1 Pro Max |
| Wants 2-channel road-only | ✅ Designed for this | Overkill cabin | S1 Pro Max |
| Wants 1TB microSD support | ✅ 1TB | ❌ 512GB ceiling | S1 Pro Max |
| Wants LTE remote monitoring option | ✅ Optional module | ❌ Local-only | S1 Pro Max (if needed) |
| Lowest price point | $349.99 MSRP / $179.99 promo | $379.99 MSRP | S1 Pro Max usually cheaper |
The S1 Pro Max is the right answer when cabin coverage is not needed but rear plate readability + ADAS are needed. The N4 Pro is the right answer when cabin coverage is needed but ADAS is not.
The LTE Module Option
The S1 Pro Max supports optional LTE connectivity via a separate Vantrue LTE module purchase + active cellular SIM data plan. This enables 24/7 remote cloud monitoring for drivers who want to:
- Receive parking-mode alerts on their phone while away from the vehicle
- View live footage from anywhere
- Track GPS location remotely
Without the LTE module, the S1 Pro Max operates as fully local-only (consistent with the rest of the Vantrue lineup). The LTE option is opt-in, not bundled — buyers can use the S1 Pro Max entirely subscription-free if they choose. Drivers who need always-connected features pay the LTE module cost + monthly cellular plan; drivers who want pure local-only ignore the LTE option and get the full dash cam experience at $349.99 MSRP.
Frequently Asked Questions
What is unique about the S1 Pro Max compared to other 4K dash cams?
Two things. (1) Only Vantrue model with dual Sony STARVIS 2 IMX678 — both front and rear capture native 4K (4K+2.5K variant also exists). (2) Adds ADAS (FCW + LDW + Pedestrian Detection) and BSD (Blind Spot Detection), features absent from N4 Pro and N4 Pro S. Combination of dual-4K + ADAS + BSD in a 2-channel dash cam at $349.99 MSRP is unique in the current Vantrue lineup.
Current price of S1 Pro Max?
MSRP $349.99 on vantrue.com. Promotional pricing was aggressive in 2026 — Electrosavvy reported $259.99 (25% off) in March 2026; Dealnews reported a promotional price of $179.99 on the same product. At promo, one of the lowest-priced dual-4K STARVIS 2 dash cams currently shipping.
What is ADAS in a dash cam?
ADAS (Advanced Driver Assistance System) = computer-vision features analyzing the road in real-time. S1 Pro Max ADAS includes Forward Collision Warning (FCW), Lane Departure Warning (LDW), and Pedestrian Detection. On-device processing, no cloud required. Useful for drivers without factory-installed ADAS (most older vehicles).
Is BSD included on the S1 Pro Max?
Yes — the S1 Pro Max is the only Vantrue model listing BSD (Blind Spot Detection). Rear camera’s wide FOV + on-device computer-vision detects vehicles in blind spots, alerts driver via display. Complements forward ADAS by covering rear-blind-spot scenarios.
Difference between 4K+4K and 4K+2.5K variants?
4K+4K (Amazon B0F8BW5HTS) uses STARVIS 2 IMX678 on both front and rear. 4K+2.5K (Amazon B0FCDHPNVP) uses IMX678 front + different STARVIS 2 sensor at 2.5K rear. Both list ADAS + BSD. Pricing differs slightly. For most drivers, 4K+2.5K is sufficient — 4K vs 2.5K rear matters mainly at 25+ foot rear distances.
Does the S1 Pro Max have a cabin camera?
No — it is a 2-channel design (front + rear road only). For cabin IR coverage, the spec match is the N4 Pro (\(379.99, 3-channel) or N4 Pro S (\)459.95). The S1 Pro Max is the road-focused premium option.
Can I use the S1 Pro Max without LTE / subscription?
Yes. The LTE module is optional. Without LTE, the S1 Pro Max operates as fully local-only — microSD up to 1TB, no cloud, no subscription, no recurring fees. The LTE option is opt-in for drivers who want remote cloud monitoring.
How long is the S1 Pro Max rear cable?
Long enough for sedan and most SUV installations. For trucks, RVs, or vehicles requiring longer cable runs, Vantrue sells extension cables separately. Specific cable length is published on the product page.
Sources & Verification
- Vantrue S1 Pro Max product page: vantrue.com/products/s1-pro-max
- Amazon S1 Pro Max 4K+4K variant: amazon.com/dp/B0F8BW5HTS (Dual 4K + ADAS + BSD)
- Amazon S1 Pro Max 4K+2.5K variant: amazon.com/dp/B0FCDHPNVP (4K front + 2.5K rear + ADAS + BSD)
- Walmart S1 Pro Max 4K+2.5K listing: walmart.com (confirms dual STARVIS 2 + ADAS + BSD)
- Electrosavvy.net (March 2026 deal report): $259.99 promotional pricing
- Dealnews snapshot: $179.99 promotional pricing reference
This article compiles publicly available product specifications, retail listings, and pricing snapshots. All claims about dual STARVIS 2, ADAS features, BSD, variant configurations, and pricing can be independently verified on the linked manufacturer and retail pages.