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Robot · 2 models tracked · best X3 Plus 7.5

Sunseeker

What owners say Whisper-quiet at 55 dB; the recurring warning is low-profile obstacles defeat it: a full-summer test saw it stuck on a log between lawn sections and on small divots. roboter-forum, Home Depot reviews, across 2 models

The models

ranked on the same rubric; the rank chip is the whole-field rank
Model no. X3 PLUS
Max lawn
0.3ac
Max slope
30%
Cut width
8in

0.3-acre plot to scale · ground tilted to the 30% rating · lanes 8 in wide, the real cut · straight RTK lanes with a camera watching ahead, no wire, satellites in view

04Sunseeker · Wire-free (GPS / vision)

X3 Plus

$999.99 at shopsunseekertech.com (MSRP $1,599.99)Verified

7.5/10 Score
REL
6.5
PER
7.5
USE
8.5
VAL
8.5
SUP
7.0
Known issueLow-profile obstacles defeat it: a full-summer test saw it stuck on a log between lawn sections and on small divots Tom's Guide · hands-on
Take it home ifYou want the fastest possible setup on a small, tidy lawnFull entry →
Walk past it ifYour lawn has logs, divots or other low-lying obstacles

Not rated for this yard

$999.99 at Sunseeker →7 sources · 2 owner

Also atAmazon

Amazon link · we earn a commission if you buy · $1,599.99 is the MSRP, not a live price

Model no. X5
Max lawn
0.5ac
Max slope
60%
Cut width
8.6in

½-acre plot to scale · ground tilted to the 60% rating · lanes 8.6 in wide, the real cut · straight RTK lanes with a camera watching ahead, no wire, satellites in view

06Sunseeker · AWD / steep slopes

X5 AWD

$1,384 at shopsunseekertech.com (MSRP $1,999.99)Verified

7.3/10 Score
REL
6.5
PER
8.5
USE
6.5
VAL
8.0
SUP
7.0
Known issueFirmware updates ship without changelogs; an April 2025 release degraded battery performance, and owners report it failing to resume on its own after charging roboter-forum · owner thread
Take it home ifYou have up to half an acre of bumpy or sloped groundFull entry →
Walk past it ifApp quality is central to how you judge a smart device

Not rated for this yard

$1,384 at Sunseeker →9 sources · 4 owner

Also atAmazon

Amazon link · we earn a commission if you buy · $1,999.99 is the MSRP, not a live price