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Harvesting · head to head

Fieldworker 1 vs GR-100

Two harvesting machines, one verified table. Every figure below is sourced and dated; vendor claims are labelled and kept apart from independent results.

Fieldworker 1 in full →GR-100 in full →Open in the comparator →
Fieldwork Robotics Ltd · United Kingdom

Cambridge/Plymouth-rooted raspberry harvesting robot with four soft picking arms and AI-enhanced 3D vision — spectral-frequency ripeness sensing removes human bias from pick decisions. Running a two-year harvesting-as-a-service programme with Place UK (Norfolk) and Littywood Farm (Stafford), backed by £3m funding; international trials planned in Portugal and Australia, commercial multi-robot fleets targeted from 2027.

Best for: Raspberry growers in the UK who want early access to soft-fruit harvest automation via a service programme rather than buying hardware.
Four Growers, Inc. · United States

Pittsburgh-built autonomous greenhouse tomato harvester running the first operational robot fleets in Dutch greenhouses — snack, plum and cherry tomatoes picked by suction with stereo vision at up to 43 kg/h and 98% ripe-detection precision. Fits existing commercial greenhouses with minimal modification; used by grower Westburg and at Syngenta's TomatoVision research facility.

Best for: Large glasshouse tomato operations in the Netherlands or US wanting fleet harvesting of snack/cherry tomatoes plus per-row yield heatmaps and forecasting.
Fieldworker 1
Verified 2026-07-17
GR-100
Verified 2026-07-17
Overview
TaskHarvestingHarvesting
AutonomyFully autonomousFully autonomous
Country of originUnited KingdomUnited States
AvailabilityPilot / limitedAvailable now
EU marketPendingPending
Lead timeNot disclosedNot disclosed
Last verified2026-07-172026-07-17
Specifications
Power sourceBattery-electric (details not disclosed)Battery-electric greenhouse platform (details not disclosed)
Required tractor powerNot required (self-propelled between rows)Not required (self-propelled on greenhouse rows)
DimensionsNot disclosedNot disclosed
WeightNot disclosedNot disclosed
Min farm sizeNot disclosedNot disclosed
ProductivityDesigned to match human picker speed and quality; figures not publishedUp to 43 kg/h (12 g fruit) · 98% ripe-detection precision · 24/7 operation · cart holds 24 crates / 246 kg per session
Max speedNot disclosedNot disclosed
SensorsAI-enhanced 3D cameras · spectral-frequency ripeness sensing · machine learning pick selectionStereo camera array (4–8 stereo cameras reported) for per-plant perception and ripeness detection
Price & model
Price (EUR)Not disclosedNot disclosed
Native priceNot disclosedNot disclosed
Business modelHarvesting-as-a-service (2-year programme with Place UK and Littywood Farm); no hardware list priceNot disclosed publicly; deployed via direct engagements with growers (fleet operations)
Ongoing costService contract terms not disclosedNot disclosed
Key outcome
Best verified resultRipeness assessment
Spectral-frequency sensing removes human bias from ripeness analysis · vendor
Harvest labour for snack tomatoes
−50% labour (vendor-reported) · vendor
EU context
CE markingNo CE marking published — UK (UKCA regime) pilots; Portugal trials planned, EU placement not verifiedNo CE marking published; US manufacturer operating robots in NL greenhouses
Machinery RegulationNot verified for EU market placementEU market-placement status not verified despite Dutch fleet operations
CAP subsidyNot applicable — service not yet offered in the EUGreenhouse harvest automation — not directly tied to CAP eco-schemes

"—" means the manufacturer has not disclosed the figure; we never estimate silently. Model either machine's payback with your own numbers on its ROI calculator page.