Bestbuy offers Greenworks - Optimow Robotic Lawn Mower - Green for $999.99 (orig. $1599.99) with free shipping.

Product Description:
Spend less time on your lawn and more time on things you want to do when you use OPTIMOW, a fully programmable robotic lawn mower. With an adjustable cut height and the ability to schedule mowing using the GreenGuide app, optimow is a great product to help maintain your lawn, rain or shine, day or night. 

• Fully autonomous robotic lawn mower for larger lots
  This model is best suited for 3/4 acre lots with 1/2 acre mowing area.
• Handles both flat and sloped ground
  Slopes are no problem as this model handles slopes up to 35%, 22°.
• Brushless motor
  Brushless wheel and blade motors provide more torque, quiet operation and longer life.
• 5 Position Adjustable Cut Height from 2.4” to 4”
  Adjust the cut height between 2.4” and 4” to match your grass type. Suitable for the following types of grasses: Bermuda, Centipede, Zoysia, Bluegrass, Rey Grass, Kentucky 31, Tall Fescue, St. Augustine
• GreenGuide App
  Control and manage your optimow from anywhere with the GreenGuide app (4G cellular, Free 2-year subscription)
• Programmable Schedule
  The GreenGuide app allows you to schedule your optimowâ to mow anytime day or night, giving you complete control over your lawn's maintenance.
• Fully-integrated GPS tracking
  Check on your optimowâ and see its real-time location, no matter where you are.
• IPX5 Waterproof
  An IPX5 rating gives you the ability to clean your optimowâ safely and easily by just rinsing it off with a garden hose.
• 3 Pivoted Cutting Blades
  The optimowâ uses 3 pivoted cutting blades that micro-mulch the grass reducing the need for fertilizer and eliminating the need to dispose of grass clippings.
• DIY Installation
  All the materials you need to install your optimowâ (Boundary Wire, Lawn Staples, Transformer, Connectors, Safety Key, CS Screws) are included in the box. Installation videos are available to help guide you through the process.
• Safety Design
  The blades stop working immediately if the optimowâ is lifted from the ground.
• Warranty
  4-year limited warranty