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Welaso 21-inch LCD Video Advertising Backpack,1920 * 1080 Resolution Ratio, Human Walking Backpack Digital Billboard (Mobile Version+Touch Screen+4G+32G)
✅ In stock
⭐ Lowest price we've tracked
F
Grade
Analysis Confidence
63%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Oct 21, 2026 10:09 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price sits right around what this item typically fetches.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
20/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Welaso
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓【21.5 inch LCD screen】 the backpack is equipped with a customized LCD screen and Android system, which can playvideos in mp4, mpg, rmvb, avi, mov, flv and other formats, 1080 *1920
✓【Working duration】 lt can work for 2-3 hours when fully charged, it uses rechargeable lithium battery，If needed, users can purchase additional batteries to extend running time.
✓【Multiple Functions】 The product has multiple functions, such as playing videos, Show ads slideshow, Ad loop play etc. Supports mobile phone Screen Mirroring, wireless screen projection, wired screen casting, real-time sharing, Internet surfing, conference whiteboard and so on, More features are waiting for you to discover.
✓【Easy to use】This backpack is very easy to use and set up. this version is an upgraded version, the system runs more smoothly. Using the shake function of the mobile APP, we can quickly release pictures or videos on the mobile phone to the screen of LCD backpack. We can change the content on the LCD anytime and anywhere via APP
✓【Fashion backpak】Adjustable backpack shoulder strap, adiustable screen height at any time, comfortable handle, antiscratch design, password lock
✓【Customer service】Don’t worry about after-sales service; If you need any further assistance during use, please feel free to contact us. we are always be there, We have a professional technical team and after-sales team to serve you
⚙️ Specifications
Panel type
21.5“
System
Android 9.0
Version
Network
Display resolution
1920*1080
Built-in memory
4+32G
Contrast
1000:1typ
Maximum brightness
500cdm2(customizable)
Split screen playback
Support horizontal, vertical, full screen and split screen playback
Color
Etv Network Version
Backpack Design
Laptop Backpack
Product Style
Custom