Gardena
Gardena Sileno City
- Autonomy
- II Assisted Autonomy
- Score
- 69/100 Capable
- Readiness
- Ready Now
- Price
- $736.41confirmed
Comparison · 2 robots
Gardena Sileno City · Gardena Sileno Life 750
All robot lawn mowers. Every measure below is plotted against the full class, so a difference can be read against how much the class itself varies.
- Gardena Sileno City
- Gardena Sileno Life 750
Gardena
Gardena Sileno Life 750
- Autonomy
- II Assisted Autonomy
- Score
- 70/100 Strong
- Readiness
- Ready Now
- Price
- $1,199list
Up to three
01 Classification
What each one does on its own.
The Autonomy Ladder is the same five rungs for every robot on the site. A rung describes the conditions a robot handles without you, not how good it is.
V
Generalized
Any task, any setting
IV
Environmental
Handles new obstacles without help
III
Conditional
Finishes familiar jobs on its own
II
Assisted
Runs preset routines, needs rescue
Gardena Sileno CityGardena Sileno Life 750
I
Manual
One action, on command
02 Assessment
Where they actually differ.
The Robovations Score is nine inputs across three pillars, each weighted as shown and each scored so that more is better. A robot can lead on one and trail on another, which is the point of showing them apart. Cost of ownership and data handling are reported on each robot's own page and are never averaged into the score.
Capability
Task completion16% of score
Does it finish the job it is sold to do, unattended
7875
- Gardena Sileno City78
- Gardena Sileno Life 75075
18median 72 across 354 scored robots100
Coverage and navigation10% of score
Does it work the whole area, and hold that between runs
5250
- Gardena Sileno City52
- Gardena Sileno Life 75050
15median 70 across 344 scored robots100
Edge-case recovery10% of score
Does it recover from the failures its category presents
3238
- Gardena Sileno City32
- Gardena Sileno Life 75038
18median 50 across 261 scored robots100
Operating envelope4% of score
How far conditions can vary before performance drops
6062
- Gardena Sileno City60
- Gardena Sileno Life 75062
25median 70 across 320 scored robots100
Dependability
Field failure rate16% of score
Documented hardware failures per owner-year
10081
- Gardena Sileno City100
- Gardena Sileno Life 75081
6median 70 across 344 scored robots100
Software stability14% of score
Whether updates fix more than they break
6555
- Gardena Sileno City65
- Gardena Sileno Life 75055
15median 65 across 275 scored robots100
Support longevity10% of score
Committed parts, service and updates, with dates
100100
- Gardena Sileno City100
- Gardena Sileno Life 750100
0median 63 across 354 scored robots100
Ownership burden
Routine maintenance12% of score
Hands-on time it asks for in normal operation
4356
- Gardena Sileno City43
- Gardena Sileno Life 75056
22median 68 across 355 scored robots100
Consumables8% of score
Parts that must be bought to keep it working
7189
- Gardena Sileno City71
- Gardena Sileno Life 75089
30median 69 across 354 scored robots100
03 Measured against the class
How far apart is a long way?
A number only means something next to the spread it sits in. Each track below is the real range across every classified robot in the class, with the median marked.
Price71 with a published figure
$736.41$1,199
- Gardena Sileno City$736.41
- Gardena Sileno Life 750$1,199
$24.99median $1,999$5,999
Runtime74 with a published figure
70 min65 min
- Gardena Sileno City70 min
- Gardena Sileno Life 75065 min
30 minmedian 110 min240 min
Charge time73 with a published figure
60 min60 min
- Gardena Sileno City60 min
- Gardena Sileno Life 75060 min
30 minmedian 90 min300 min
Noise75 with a published figure
58 dB57 dB
- Gardena Sileno City58 dB
- Gardena Sileno Life 75057 dB
50 dBmedian 60 dB82 dB
Weight84 with a published figure
15.9 lbs16.1 lbs
- Gardena Sileno City15.9 lbs
- Gardena Sileno Life 75016.1 lbs
11.9 lbsmedian 29.8 lbs134 lbs
Height85 with a published figure
9.5 in9.1 in
- Gardena Sileno City9.5 in
- Gardena Sileno Life 7509.1 in
7.5 inmedian 10.8 in16.5 in
Not compared, because fewer than two of these robots carry a published figure: Suction.
04 Ownership
What the numbers leave out.
The trade-off
What each design gives up to be good at what it is good at.
Gardena Sileno City
Bluetooth-only control keeps the mower off the internet but ties it to proximity. There is no account, no cloud outage and no remote data path, and equally no way to check on it or change the schedule from anywhere but the garden.
Gardena Sileno Life 750
Random-pattern cutting inside a fixed wire keeps the machine simple and the setup permanent. You get an even lawn from cutting often; you do not get route planning or obstacle avoidance.
Who each one is wrong for
Stated by the record itself. A robot being wrong for a household is a fact about fit, not a fault.
Gardena Sileno City
- Yards over 250 sqm or complex irregular boundaries
- City spec limit is 250 sqm. Narrow passages, disconnected zones, and organic boundaries exceed the system's design scope. Larger yards need larger mowers.
- Slopes exceeding 10% gradient
- Manufacturer documentation lists maximum slope at 25%, but owner reports and product reviews document traction loss and navigation uncertainty above 10% on wet grass.
- Owners wanting control from away from home
- The app link is Bluetooth at up to 10 m, so schedule changes and status are available from the garden but not from the office. Remote access requires the smart SILENO models and the gateway they work with.
Gardena Sileno Life 750
- Lawns with complex topography, slopes, or frequent obstacles
- No avoidance capability; slopes >15°, rocks, toys, or garden furniture will cause collisions or stalling requiring manual recovery.
- Users wanting wire-free, zero-setup autonomous operation
- Boundary-wire infrastructure is mandatory. RTK or vision-based alternatives not available on this model.
- Large estates or multi-zone properties over 750 sq m
- Rated for 750 sq m maximum; properties larger than this exceed rated coverage and would require multiple units.
What stays your job
The upkeep ownership hands back to you, whatever the autonomy level says.
Gardena Sileno City
- Seasonally: Deploy mower, verify boundary wire integrity (visual walk-through), test dock connection (5 minutes).
- Every 6-8 weeks (during season): Inspect and replace mower blades ($20-30 per set).
- After every 2-3 uses: Clear deck and blade area of grass clippings and debris.
- Monthly (during season): Inspect visible boundary wire for breaks or corrosion damage. Check dock contacts for dirt.
- Annually: Full boundary wire inspection and repair of any breaks. Deep blade maintenance and dock connector check.
Gardena Sileno Life 750
- Weekly: Dock cleaning and mower base inspection for grass clippings and debris buildup.
- Monthly: Blade inspection for dulling; jagged grass edges indicate wear requiring replacement.
- Every 3-6 months: Replace the blades as a set (typically €15-25). They are flip-and-replace razors rather than sharpenable blades; grinding an edge back removes the coating and leaves a weakened blade spinning on an unattended machine.
- Annually: Boundary wire inspection for breaks and corrosion; re-splicing or perimeter repair as needed (€0-500+ depending on property size and condition).
- Seasonally: Spring startup (full charge, app pairing verification, dock contact cleaning); autumn storage with the mower cleaned, the battery charged rather than left flat, and the dock brought indoors if freezing is expected.
05 Evidence
How much each of these is standing on.
Classifications rest on different depths of evidence. A pre-release assessment and a verified one are not the same kind of claim.
| Robot | Evidence status | Sources reviewed | Last assessed |
|---|---|---|---|
| Gardena Sileno City | Provisional | 2 | Aug 2026 |
| Gardena Sileno Life 750 | Verified | 5 | Aug 2026 |
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