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Natural Expressions Performance 7 vs. Sunseeker S4 compared
Robot Lawn Mower
At a glance
The key numbers for both devices side by side.
Overall rating
8888Gut
8787Gut
Value for money
95Excellent
95Excellent
Best price
€799.99
€749.99
Price advantage
—
€50.00 cheaper
Offers
2 shops
1 shop
Rank in category
Rank 11 of 80
Rank 13 of 80
Rating
Sub-ratings compared
Natural Expressions Performance 7Overall rating 88Sunseeker S4Overall rating 87
Natural Expressions Performance 7Sunseeker S4
Mowing results82/10077/100
Navigation & reliability86/10085/100
Setup & app90/10084/100
Noise level85/10079/100
Safety90/10073/100
Build quality & ease of use84/10079/100
Mowing results
82
77
Navigation & reliability
86
85
Setup & app
90
84
Noise level
85
79
Safety
90
73
Build quality & ease of use
84
79
Specs
Specs compared
Key specs
Model
Performance 7
S4
Max. lawn areaLargest lawn area according to the manufacturer in m², the highest if several figures are given (e.g. per mowing pattern) – buy with some margin, the mower manages less in winding gardens
500 m² (5,382 sq ft)
1,000 m² (10,764 sq ft)
NavigationHow the mower detects its area according to the manufacturer – everything except boundary wire works without laying a wire; RTK needs open sky, while under trees and next to house walls a camera or LiDAR helps
AI camera
LiDARAI camera
No boundary wireWorks without a laid boundary wire according to the manufacturer, e.g. using RTK-GNSS, a camera or LiDAR
Yes
Yes
Mowing patternHow the mower covers the lawn according to the manufacturer – randomly in all directions or in orderly lanes; lanes finish faster and leave a striped look
Systematic lanes
Systematic lanes
Max. inclineMaximum slope according to the manufacturer in percent, not degrees – 45% is roughly 24 degrees
32 %
42 %
Obstacle detectionHow the mower detects obstacles according to the manufacturer – a camera and LiDAR steer around them before it bumps into them; whether it also spots small animals such as hedgehogs, only test reports can show
Camera/AI
LiDARCamera/AIBump sensor
Cutting widthCutting width according to the manufacturer in cm – wider mows faster
18 cm (7.1 in)
18 cm (7.1 in)
Area coverage per hourArea mowed per hour of mowing according to the manufacturer in m², excluding charging breaks; if a range is given, the lower value – shows how fast the mower really progresses, unlike the maximum lawn area
100 m²/h
Mowing & drive
Min. cutting heightLowest adjustable cutting height according to the manufacturer in mm
20 mm (0.79 in)
20 mm (0.79 in)
Max. cutting heightHighest adjustable cutting height according to the manufacturer in mm
60 mm (2.4 in)
60 mm (2.4 in)
Cutting height adjustmentHow the cutting height is adjusted according to the manufacturer – electric adjustment works via app or display
Manual
Manual
Edge cuttingMows close to edges and flower beds according to the manufacturer – less trimming left to do
Yes
Yes
All-wheel driveAll-wheel drive according to the manufacturer – for slopes and uneven terrain
No
No
Min. passage widthNarrowest passage the mower can still get through according to the manufacturer, in cm – matters for garden gates and paths between front and back yard
60 cm (24 in)
80 cm (31 in)
Sound power levelGuaranteed sound power level according to the manufacturer in dB – not the sound pressure at your ear, which is considerably lower
56 dB
60 dB
Battery
Battery capacityRated battery capacity according to the manufacturer in Ah – divide mAh figures by 1,000
3.8 Ah
4 Ah
Mowing time per chargeMowing time on a full charge according to the manufacturer in minutes
120 min
Charging timeCharging time from empty to full according to the manufacturer in minutes
100 min
84 min
App & safety
ConnectivityConnections according to the manufacturer – with cellular, the mower stays in touch even without Wi-Fi in the garden, usually with a subscription
Wi-FiBluetoothCellular (LTE)
Wi-FiBluetooth
App controlSchedules, zones and status via app according to the manufacturer
Yes
Yes
Voice control & smart homeHow the appliance can be controlled according to the manufacturer
Manufacturer app
Manufacturer appAlexaGoogle Assistant
Multiple zonesMultiple mowing zones or maps according to the manufacturer – for front and back yards
Yes
Yes
Rain sensorStops mowing when it rains and returns to the charging station, according to the manufacturer
Yes
Yes
Anti-theft protectionTheft protection according to the manufacturer – GPS tracking helps find a stolen mower, a geofence raises the alarm as soon as it leaves its area
AlarmGPS trackingGeofence
PIN
Small animal detectionAccording to the manufacturer, the mower detects small animals such as hedgehogs and avoids them – only testing shows whether this works reliably
Yes
RTK base stationWhether RTK-GNSS requires a separate base station according to the manufacturer, and whether it is included
Not required (network RTK)
Not required (network RTK)
Dimensions & weight
WeightWeight of the mower according to the manufacturer in kg
10.2 kg (22 lb)
11 kg (24 lb)
IP ratingDust and water protection according to the manufacturer – from IPX5, the mower can be hosed down with a garden hose
IPX6
IPX6
General
Warranty
2 years
3.5 years
Price segment
Budget
Premium
Model year
2026
2026
In the box
Mähroboter, Ladestation, Garagenabdeckung, Installationskit, Ersatzklingen
Mähroboter, Ladestation, Ladegerät, 8 Nägel, 12 Klingen, 12 Schrauben, Reinigungsbürste, LiDAR-Schutzhülle, Tuch
Prices
Offers
Verdict
Pros & cons
Der Natural Expressions Performance 7 ist ein drahtloser Kamera-Mäher, der ohne Antenne auskommt und auch unter dichten Bäumen sicher navigiert. Hindernisse vom Tennisball bis zum Schlauch umfährt er zuverlässig, die Garage liegt bei. Er passt zu ebenen Gärten bis etwa 400 m². Der Haken: An Mauern und Hecken bleiben meist 10 bis 15 cm stehen, und gemäht wird nur bei Tageslicht.
Pros
- Navigiert per Kamera auch unter dichten Baumkronen und an Hauswänden sicher
- Umfährt Tennisball, Schuh, Zollstock und Igel-Attrappe ohne Berührung
- Genaue Karte spart Beete, Kies und Gullydeckel von selbst aus
- Mäht an Terrassenplatten und flachen Randsteinen bis zum letzten Halm
- Akku hält 2,5 bis 3:20 h und lässt sich tauschen
- Garage im Lieferumfang, Ecken-Modus für verwinkelte Stellen
Cons
- An Mauern und Hecken bleiben meist 10 bis 15 cm Rand stehen
- Schafft real nur 50 bis 77 statt 100 m² pro Stunde
- Rutscht an schrägen Hängen und fährt sich in Senken fest
- Hält trockene, kahle Rasenstellen für Hindernisse und lässt sie aus
- Schnitthöhe nur am Gerät, Randabstand gilt für die ganze Karte
Der Sunseeker S4 ist ein drahtloser LiDAR-Mäher, der ohne Antenne präzise navigiert und auch unter Bäumen und durch 70 cm schmale Durchgänge sicher fährt. Er passt in verwinkelte Gärten bis etwa 600 m². Die Haken: An Randsteinen bleibt ein Streifen von 10 bis 15 cm stehen, mit 18 cm Schnittbreite mäht er langsam, und einen Gartenschlauch übersieht er. Die Herstellerangabe von 1000 m² ist nur im Dauerbetrieb erreichbar.
Pros
- Präzise LiDAR-Navigation ohne RTK-Antenne, auch unter Bäumen und an Hauswänden
- Fährt durch 70 cm schmale Engstellen trotz 80 cm Herstellerangabe
- App mit Einstellungen je Zone, Sperrzonen und Verbindungswegen
- Gleichmäßiges Schnittbild dank schwimmender Mähscheibe, keine Wendespuren
- Sichere Zone lässt ihn unter überhängenden Zweigen mähen
- Station in wenigen Minuten aufgebaut, kein Draht nötig
Cons
- An festen Kanten bleiben 10 bis 15 cm Rasen stehen, ohne Trimmer
- Langsam: 4 h 53 min für 240 m² samt Ladepausen
- Übersah einen Gartenschlauch und plötzlich abgelegte Gegenstände
- Schnitthöhe nur am Gerät per Drehrad einstellbar
- Automatische Kartierung scheitert an fließenden Rasengrenzen
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