When customers walk into Seacoast Power Equipment in North Hampton, NH, asking about Kress robotic mowers, the question that comes up most often isn’t about price or coverage area. It’s this: “What’s the difference between EyePilot and RTKn, and do I actually need EyePilot?”
It’s a fair question. Both systems are wire-free. Both use satellite guidance. Both are built by Kress. But they’re not the same, and on certain New Hampshire properties, choosing the wrong one means a mower that hesitates, stalls, or simply doesn’t finish the job cleanly.
This is a straight comparison of both systems: what each does, which models carry each, where each performs better, and how to match your specific property to the right technology. Our team has over 100 years of collective experience fitting customers to the right power equipment on the seacoast, and robotic mowing is no different. If you want to see current inventory, our Robotics page has what’s in stock.
What RTKn Navigation Is and How It Works
RTKn stands for Real-Time Kinematic navigation. It’s a satellite positioning method originally developed for precision agriculture and land surveying, adapted here for autonomous lawn mowing. The system pulls positioning data from four satellite networks simultaneously: GPS, GLONASS, Galileo, and BeiDou. Cross-referencing four networks keeps location accuracy within 2 to 3 centimeters, even when individual satellites are obscured.
The Kress RTKn network also transmits correction data from a national grid of base station antennas. That correction layer is what separates RTKn from basic GPS. Standard GPS drifts by several feet. RTKn stays within centimeters because it’s constantly checking its position against verified ground reference points.
In practice, the mower follows your virtual boundaries precisely, mows in parallel lines like a professional landscaper, and navigates between zones reliably without any buried wire on your property. On an open property with reasonable sky visibility, standard RTKn is remarkably capable.
Standard RTKn models we carry: KR173 (up to 0.75 acres) and KR174 (up to 1.25 acres)
What EyePilot Adds on Top of RTKn
EyePilot is not a replacement for RTKn. It’s a second navigation layer built on top of it.
The EyePilot system adds a forward-facing camera with AI-powered visual recognition. While RTKn is constantly confirming position via satellite, EyePilot simultaneously reads the physical environment in front of the mower. It detects obstacles, reads terrain transitions, and maintains directional accuracy based on what it actually sees rather than satellite data alone.
Think of it this way. RTKn knows exactly where the mower is on a map. EyePilot knows what’s directly in front of it. When both systems run together, the mower has two independent sources of guidance cross-checking each other in real time.
The EyePilot models also include 4×4 all-wheel drive. Instead of two powered rear wheels, all four wheels are driven. On steep grades, wet grass, or loose coastal soil, that difference in traction is significant and noticeable.
EyePilot models we carry: KR282 (up to 0.5 acres) and KR284 (up to 1 acre)
Kress EyePilot vs RTKn: Head-to-Head on the Factors That Matter in New Hampshire
Open, Clear Properties: RTKn Handles It Well
On a well-maintained property with good satellite visibility and no major obstacles, standard RTKn delivers centimeter-accurate navigation and clean, parallel mowing lines. EyePilot adds capability that RTKn simply doesn’t need in this environment. Paying the premium here buys a feature your property won’t use.
Heavy Tree Canopy: EyePilot Is the Right Call
New Hampshire properties with mature oak, maple, or coastal pine canopy create real challenges for satellite-only navigation. When trees block portions of the sky, the satellite constellation gets thinner, and positioning accuracy can degrade. EyePilot’s visual layer compensates by reading physical surroundings, keeping the mower accurate even when satellite signals are partially blocked. This is the single most common reason we steer customers toward EyePilot, especially on wooded lots in the seacoast hill towns.
Slope Performance: EyePilot’s 4×4 Makes the Difference
Both standard RTKn models handle slopes up to 40 degrees, which covers most New Hampshire residential terrain. The KR282’s and KR284’s 4×4 drive system makes a material difference on wet grass, sandy soil, or grades that approach the limit. Two-wheel-drive models lose traction in conditions that 4x4s handle without hesitation. If your property has meaningful grade changes or sits on the coastal sand mix common throughout Hampton and Rye, the 4×4 advantage is real and worth the step up.
Edge Cutting and Boundary Precision: EyePilot Cuts Closer
The EyePilot models include ZeroTrim edge-cutting technology, which tightens boundary accuracy enough that most customers spend significantly less time finishing edges with a string trimmer. Standard RTKn models cut close to boundaries but don’t include this enhancement. If reducing hand trimming is a priority, this feature alone can justify the upgrade. For more on why cut quality matters for your lawn’s health, our post on sharp blades vs. dull blades covers the full picture.
Coverage Area: RTKn Reaches Larger Residential Lots
The KR174 handles up to 1.25 acres. The KR284 EyePilot caps at 1 acre. If your property falls in the 1 to 1.25 acre range, the KR174 is the only residential model that covers it. EyePilot models are sized for half an acre (KR282) and 1 acre (KR284), with anything larger requiring a commercial model.
Security and Remote Monitoring: EyePilot Adds 4G Tracking
The KR282 and KR284 include 4G cellular connectivity for real-time GPS tracking, remote monitoring, and theft alerts through the Kress app. Standard RTKn residential models connect via Bluetooth and Wi-Fi but don’t include 4G. For a vacation property, a second home, or any situation where you’re managing the mower remotely, 4G tracking provides a meaningful security layer.
Price: RTKn Is the More Accessible Entry Point
The KR173 starts around $2,000. The KR174 ranges from $2,700 to $5,200 depending on configuration. The KR282 EyePilot starts at $2,999 and the KR284 at $3,599. For a property that doesn’t require EyePilot’s specific advantages, standard RTKn delivers excellent performance without the premium. Check our promotions page for current pricing and seasonal deals.
Quick Comparison: EyePilot vs RTKn at a Glance
| Standard RTKn (KR173 / KR174) | EyePilot 4×4 (KR282 / KR284) | |
| Navigation | Satellite RTKn only | RTKn + AI camera vision |
| Drive system | 2-wheel drive | 4-wheel drive |
| Coverage | Up to 1.25 acres | Up to 1 acre |
| Slope handling | Up to 40 degrees | Up to 40 degrees + better wet traction |
| Edge cutting | Standard boundary | ZeroTrim precision edge cutting |
| Connectivity | Bluetooth / Wi-Fi | Bluetooth / Wi-Fi / 4G |
| Theft tracking | No | Yes, 4G GPS tracking |
| Best for | Open, clear properties | Wooded, hilly, complex layouts |
| Starting price | ~$2,000 | ~$2,999 |
When Standard RTKn Is the Right Choice for Your NH Property
Standard RTKn makes sense when your property checks these boxes.
You have an open lawn with good sky visibility. A half- to 1.25-acre lawn without a dense canopy overhead is where RTKn operates at its best. Satellite accuracy is consistent and reliable, and there’s no practical benefit to the EyePilot camera layer in this environment.
Your terrain is flat to moderately sloped. The KR174’s 40-degree slope capability covers the majority of New Hampshire residential properties. If grades are moderate and soil holds traction, two-wheel drive does the job.
Your property is between 1 and 1.25 acres. The KR174 is currently the only residential model that reaches this coverage range. EyePilot models max out at 1 acre with the KR284.
You want strong performance at a lower price point. If your property doesn’t require EyePilot’s specific advantages, the standard RTKn models deliver professional-grade robotic mowing without paying for features you won’t use.
Before the season starts, our spring mowing timing guide for New Hampshire covers what to expect as you get your robotic mower running for the first time each year.
When EyePilot Is the Right Choice for Your NH Property
EyePilot earns its premium when your property fits one or more of these situations.
Your lawn sits under a significant tree canopy. This is the clearest case for EyePilot. If trees block meaningful sky view across your lawn, the visual navigation layer fills the accuracy gap that satellite-only guidance leaves open. We see this most often on wooded lots in the seacoast hill towns and on inland New Hampshire properties with mature hardwood stands.
Your property has steep grades or coastal sandy soil. The 4×4 drive system on the KR282 and KR284 provides traction the two-wheel-drive RTKn models can’t match on wet grass, fall leaf cover, or sandy coastal soil. If your lawn has grades above 35 degrees or soil conditions that reduce wheel grip, 4×4 is the right foundation.
Your lawn is under 1 acre with complex obstacles. Dense landscaping, multiple garden beds, water features, and irregular boundaries challenge any robotic mower. EyePilot’s visual recognition layer handles complex obstacle environments with more confidence than satellite guidance alone.
Reducing trimming time is a priority. ZeroTrim edge cutting on EyePilot models genuinely cuts closer to boundaries, which means less time finishing edges with a string trimmer. For homeowners who currently spend significant time on edge finishing, this feature meaningfully improves the overall time savings the mower delivers.
You’re managing the mower remotely. 4G connectivity for real-time tracking and theft alerts is built into EyePilot models. For a vacation property, a seasonal residence, or any property you’re not always on-site to monitor, that visibility matters.
If you want to evaluate both systems on your actual property before committing, our try-before-you-buy program lets you do exactly that.
Frequently Asked Questions
What is the difference between Kress EyePilot and RTKn?
RTKn is Kress’s core satellite navigation system, positioning the mower within 2 to 3 centimeters using four satellite networks simultaneously. EyePilot is not a separate system. It adds a forward-facing AI camera on top of RTKn, giving the mower a second source of real-time guidance based on what it physically sees. EyePilot models also include 4×4 all-wheel drive and ZeroTrim edge cutting. Every EyePilot model runs RTKn underneath. Not every RTKn model has EyePilot.
Can standard RTKn mowers handle partial tree shade?
Yes, in most cases. The multi-constellation satellite system maintains accuracy when portions of the sky are blocked. Problems arise on heavily wooded properties where significant sky coverage is lost across large lawn sections. In those situations, EyePilot’s visual navigation layer fills the accuracy gap reliably.
Is EyePilot worth the price premium for a straightforward half-acre lawn?
For an open property with good sky visibility and moderate terrain, standard RTKn delivers the same practical result at a lower price. EyePilot earns its premium on properties where tree cover, slopes, or complex layouts create real navigation challenges. We always recommend a site evaluation first, and our service department offers exactly that before any purchase.
Do both systems require the same installation process?
Yes. Both EyePilot and standard RTKn models use virtual boundary setup through the Kress app. No buried wire, no trenching. You walk the perimeter, define no-go zones, and position the charging station. Our service department handles professional installation for either system, including site evaluation and full system testing before we leave. We also offerpickup and delivery throughout the seacoast region for ongoing service needs.
Which system is better for a New Hampshire property with both open areas and tree cover?
EyePilot. On a mixed property, the visual navigation layer provides consistent accuracy across both the open sections and the wooded sections. Standard RTKn performs well in open areas but loses precision under dense canopy.
Can I use EyePilot models on a property larger than 1 acre?
The KR284 EyePilot covers up to 1 acre. For properties between 1 and 1.25 acres, the KR174 standard RTKn is the residential model that reaches that coverage. Properties larger than 1.25 acres move into commercial model territory. See our full Robotics page for the complete Kress lineup.
What maintenance does each system require?
Both systems share the same core maintenance routine: blade replacement every 1 to 3 months, weekly undercarriage cleaning, and monthly sensor inspection. EyePilot models have a forward camera that needs to stay clean and free of grass buildup for accurate visual navigation. Our parts department carries OEM blades for both model ranges, with most items in stock and 2- to 3-day sourcing on anything we don’t have on the shelf. For seasonal maintenance timing, our spring tune-up guide covers the right NH service window.
Still Not Sure Which System Fits Your Property?
That’s exactly the conversation we have every day at Seacoast Power Equipment. We’ve been fitting the seacoast with the right power equipment since 1965, and our team carries over 100 years of collective service experience across all major brands. We carry over $1 million in power equipment inventory and a $150,000 parts inventory so when you make a decision, we can back it up immediately.
Our factory-trained technicians can evaluate your property, walk you through both Kress systems side by side, and let you see how each navigates your actual lawn before you commit. That’s not something you get from an online order or a big box store. Our service department handles professional installation with a 24 to 48 hour service turnaround, seasonal storage, and all ongoing maintenance and repairs for both systems.
For commercial landscapers and property managers evaluating Kress at a fleet level, visit our commercial mowers page or reach out directly. The commercial Kress models carry their own navigation and coordination features worth a separate conversation. Our commercial fleet spring preparation guide is also a useful starting point for professional operations building out a seasonal maintenance plan.
Ready to figure out which system is right for your property? Visit us at 106 Lafayette Road, North Hampton, NH, or get in touch online to schedule a property evaluation. We’ll bring the expertise. You bring the lawn.