Amazon has up to 42% off Amazon Devices for Memorial Day, including discounts on Echo, Fire TV, Kindle and more.  Some of these items have 10% cashback vis a Prime Visa or trade-in offers. Here's a quick breakdown of the best sales: 

Amazon Echo:

• Amazon Echo Show 8 for $140
• Amazon Echo Show 11 for $170
• Amazon Echo Show 15 for $255
• Amazon Echo Dot (newest model) for $40
• Amazon Echo Dot Max (newest model) for $75
• Amazon Echo Studio for $190

Televisions / Streaming Sticks

• Amazon Ember 55" 4-Series with Fire TV for $380 
• Hisense 75" E6 Hi-QLED 4K UHD Smart Fire TV for $500
• Amazon Fire TV 50" Omni QLED Series 4K UHD Smart TV for $290
• Amazon Fire TV Stick HD for $22
• Amazon Fire TV Alexa Voice Remote Pro for $25

Security / Cameras / Doorbells

• Blink Outdoor 4 for $38
• Blink Arc – Plug-in Panoramic Vision for $52
• Ring Outdoor Cam Plus for $60
• Ring Floodlight Cam Wired Plus for $120
• Blink Video Doorbell for $30
• Blink Outdoor 4 XR (4 cameras) for $165
• Blink Outdoor 4 Floodlight Camera for $55
• Blink Mini for $15
• Ring Alarm 8-Piece Kit for $180