SanDisk Extreme 128GB microSD vs SanDisk Ultra 128GB SD
Specs compared
| Spec | SanDisk Extreme 128GB microSD | SanDisk Ultra 128GB SD |
|---|---|---|
| Capacity | 128GB | 128GB |
| Interface | microSDXC UHS-I U3 | SD UHS-I |
| Form Factor | microSD | SD Card |
| Read Speed | 160 MB/s | — |
| Write Speed | 90 MB/s | — |
| Endurance | — | — |
| Warranty | 5 years | 1 year |
| Value Score | 50.0 | 75.0 |
| Price / TB | $0.00/TB | $0.00/TB |
| Current Price | — | $99.99 |
Our verdict
SanDisk Ultra 128GB SD significantly wins our Value Score comparison (75.0 vs 50.0), making it the better-value memory cards at current Amazon prices. SanDisk Extreme 128GB microSD carries a longer 5-year warranty vs 1 years for the SanDisk Ultra 128GB SD. Value Score is calculated daily from price, price per TB, read speed, endurance TBW, and warranty — so rankings shift as prices change. Check back to see if today's winner still leads.
Value Score combines price per TB (35%), speed (25%), endurance (20%), warranty (10%), and reviews (10%). Updated daily from Amazon.