Kress Mission RTKn KR174 vs Kress Mission RTKn KR173

Quick take: The Kress Mission RTKn KR173 costs $700 less; the Kress Mission RTKn KR174 is rated for a larger lawn (1.2 acres).

SpecKress Mission RTKn KR174Kress Mission RTKn KR173
Price~$2,699~$1,999
Rating——
NavigationRTK GPSRTK GPS
Max Lawn Size1.2 acres (52,272 sq ft)0.7 acres (30,492 sq ft)
Max Slope40% (22°)40% (22°)
Cutting Width8.7"7.9"
Cut Height1.6"–3.5"1.6"–3.5"
DriveRWDRWD
Runtime——
Charge Time——
Noise61 dB59 dB
Weight28.5 lb27.6 lb
Obstacle DetectionKress OAS obstacle avoidance module on the nose steers around objects before contact (sensor type not specified on the US page), backed by bumper, lift and tilt sensors.Kress OAS obstacle avoidance module on the nose steers around objects before contact (sensor type not specified on the US page), backed by bumper, lift and tilt sensors.
Edge CuttingNoNo
Rain SensorYesYes
CellularYesYes
Anti-TheftPIN code plus real-time GPS tracking and geofence alertsPIN code plus real-time GPS tracking and geofence alerts
WarrantyKress dealer warranty (term not listed on the US product page)Kress dealer warranty (term not listed on the US product page)

Pros & cons

Kress Mission RTKn KR174

  • ✓Widest deck in the Mission range at 8.7 in with six dual-layer blades for dense grass
  • ✓6 Ah pack and 1.7 acre maximum give real headroom over the 1.2 acre recommendation
  • ✓No antenna, base station or wire; dealer install, app boundary and dead-reckoning under trees
  • ✓OAS obstacle avoidance, 4G, GPS tracking, PIN lock and OTA updates all included
  • ✗Only works where a Kress dealer antenna covers your address; coverage must be verified first
  • ✗The US spec sheet omits runtime, charge time and warranty length; only the coverage rating and slope are stated
  • ✗40 percent slope limit is modest for an acre-plus mower; AWD rivals climb twice that
  • ✗Dealer-only sales and thin stock in September 2026 mean lead times and little owner feedback
  • ✗$2,700 buys a Navimow X350 with cameras and 1.5 acre coverage, if you will mount a base station

Kress Mission RTKn KR173

  • ✓Cheapest Kress with OAS obstacle avoidance, so it steers around objects rather than bumping them
  • ✓No antenna, base station or wire; dealer install and app boundary
  • ✓Parallel stripes with dead-reckoning fallback under trees and beside the house
  • ✓1.2 acre maximum on a 72-hour cycle gives headroom over the 0.7 acre recommendation
  • ✓Quiet 59 dB, 27.6 lb, electric height adjustment and a floating deck against scalping
  • ✗Only works where a Kress dealer antenna covers your address; no coverage, no mower
  • ✗Runtime, charge time, OAS sensor type and warranty term are not published on the US page
  • ✗Same 7.9 in deck and 4 Ah pack as the cheaper KR172, so coverage growth comes from longer cycles, not more mower