If you're looking to score a deal on Apple products, be sure to mark a shopping date in your calendar three to nine months from its launch. 

That's according to Dealnews, who found the savings can be pretty hefty—up to $350—if you do so. 

Take a look at the best deals, per 9 to 5 Mac, who cited the report: 

  • MacBook Pro 15″ Retina: $350 saving @ 9 months
  • MacBook Air 11": $199 @ 7 months
  • iPhone: $73 @ 3 months

As the site points out, you'll also want to consider "refresh" time, or how long it will be until you're ready for an upgrade. If you think it will be awhile, then it might be worth it to hold out for the savings.