Kalman Filter for Beginners: with MATLAB Examples
Track Prices on Your iPhone
Download the When Price Drop app to track Amazon prices anytime, anywhere. Get instant alerts when prices drop!
📱 Mobile Tracking
🔔 Instant Alerts
📊 Price History
Amazon Price History
Time Range:
Price Types:
Price History Summary
| Price Type | Lowest Ever | Highest Ever | Current | Average |
|---|---|---|---|---|
| Amazon | USD 69.00 | USD 69.00 | USD 69.00 | USD 69.00 |
| 3rd Party New | USD 63.62 | USD 65.00 | USD 63.62 | USD 64.37 |
| 3rd Party Used | USD 49.89 | USD 65.03 | USD 49.95 | USD 50.90 |
Price History Data
| Date | Price Type | Price | Currency |
|---|---|---|---|
| January 12, 2026 | 3rd Party Used | 49.95 | USD |
| January 12, 2026 | 3rd Party New | 63.62 | USD |
| January 12, 2026 | Amazon | 69.00 | USD |
| January 11, 2026 | Amazon | 69.00 | USD |
| January 11, 2026 | 3rd Party New | 63.62 | USD |
| January 11, 2026 | 3rd Party Used | 49.95 | USD |
| January 10, 2026 | 3rd Party Used | 49.95 | USD |
| January 10, 2026 | 3rd Party New | 63.62 | USD |
| January 10, 2026 | Amazon | 69.00 | USD |
Hot Deals on Amazon (Updated: 21 hours ago)
-40%
-26%
-26%
Questions & Answers
No questions have been asked about this product yet.
Be the first to ask a question! Use the form below to submit your question.
Ask a Question about this Product
Have a question about this product? Get answers from our community of customers or our official representatives.
Price Analysis
Price Trend
27.6% decrease since tracking began
Price Prediction
Current price is below average. Decent time to buy.
Best Time to Buy
Now is an excellent time to buy!
Reviews Summary
Loading reviews data...