Model-specific details
- SanDisk Ultra SD Memory Card
- 64GB · SDSDUNR-064G-GN3IN — Product series: Ultra SD 100MB/s
- SanDisk microSDHC Class 4
- 32GB · SDSDQM-032G-B35 — Product series: microSDHC Class 4
Memory card comparison
SanDisk Ultra SD Memory Card vs SanDisk microSDHC Class 4
Compare key specifications, features and design side by side.
01Selected  SanDisk Ultra SD Memory Card
KSh 800In Stock | 02  SanDisk microSDHC Class 4 32GB Memory Card
KSh 1,750In Stock |
|---|
2 of 4 products
Add to comparison
2 spaces availableSanDisk Extreme PRO SD Memory CardKSh 4,150
SanDisk Ultra microSD Memory CardKSh 1,800
SanDisk microSDHC Class 4 16GB Memory CardKSh 1,680
SanDisk Extreme microSD 32GB Memory CardKSh 3,800
Our quick verdict
SanDisk Ultra SD Memory Card: 2.1 g.
Sustained write performance
- SanDisk Ultra SD Memory Card
- 64GB: 10 MB/s minimum sustained write from speed classification
- SanDisk microSDHC Class 4
- 4MB/s minimum sustained write
Card type
- SanDisk Ultra SD Memory Card
- 64GB: SDXC, 128GB: SDXC
- SanDisk microSDHC Class 4
- MicroSDHC
Speed class
- SanDisk Ultra SD Memory Card
- 64GB: Class 10 / U1
- SanDisk microSDHC Class 4
- Class 4
What matters most to you?
5 priorities selected.
SanDisk Ultra SD Memory Card
- 16GB / 32GB / 64GB / 128GB / 256GB / 512GB.
- 64GB · SDSDUNR-064G-GN3IN — Product series: Ultra SD 100MB/s.
- 64GB: 10 MB/s minimum sustained write from speed classification.
- 64GB: SDXC, 128GB: SDXC.
- 64GB: Class 10 / U1.
SanDisk microSDHC Class 4
- 32GB.
- 32GB · SDSDQM-032G-B35 — Product series: microSDHC Class 4.
- 4MB/s minimum sustained write.
- microSDHC.
- Class 4.
Detailed comparison
Explore the full specifications, section by section.
General
| Specification | SanDisk Ultra SD Memory Card | SanDisk microSDHC Class 4 32GB Memory Card |
|---|---|---|
| Brand | Sandisk | Sandisk |
Performance
| Specification | SanDisk Ultra SD Memory Card | SanDisk microSDHC Class 4 32GB Memory Card |
|---|---|---|
| Speed Class | 64GB: Class 10 / U1; 128GB: Class 10 / U1 | Class 4 |
| Read / Write Speed | 64GB: Up to 100 MB/s read; 128GB: Up to 140 MB/s read | — |
| Sustained Write Performance | 64GB: 10 MB/s minimum sustained write from speed classification; 128GB: 10 MB/s minimum sustained write from speed classification | 4MB/s minimum sustained write |
Storage
| Specification | SanDisk Ultra SD Memory Card | SanDisk microSDHC Class 4 32GB Memory Card |
|---|---|---|
| Brand / Model | SanDisk Ultra SD Memory Card; 64GB: SDSDUNR-064G-GN3IN; 128GB: SDSDUNB-128G-GN6IN | SanDisk microSDHC Class 4 · SDSDQM-032G-B35 |
| Storage Capacity | 16GB / 32GB / 64GB / 128GB / 256GB / 512GB | 32GB |
| Card Type | 64GB: SDXC; 128GB: SDXC | microSDHC |
| Interface / Bus | 64GB: UHS-I; 128GB: UHS-I | — |
Features & Compatibility
| Specification | SanDisk Ultra SD Memory Card | SanDisk microSDHC Class 4 32GB Memory Card |
|---|---|---|
| Compatibility | 64GB: SDXC and SDXC UHS-I host devices; an SDHC-only slot does not support this 64GB SDXC card; 128GB: SDXC-compatible cameras and readers; maximum read speed requires a suitable compatible reader | microSDHC-compatible host devices; check capacity support and the device recording requirements |
| Durability | 64GB: Water, shock, temperature and X-ray resistance under manufacturer test conditions; no IP rating claimed; 128GB: Water, shock, temperature and X-ray resistance under manufacturer test conditions; no IP rating claimed | Water, shock, temperature and X-ray resistance under manufacturer test conditions; no IP rating claimed |
Physical & Package
| Specification | SanDisk Ultra SD Memory Card | SanDisk microSDHC Class 4 32GB Memory Card |
|---|---|---|
| Dimensions / Weight | 64GB: 31.92 × 23.91 × 2.17 mm; 2.1 g; 128GB: 32 × 24 × 2.1 mm | — |
| Included Accessories | 64GB: Full-size SD memory card; 128GB: Full-size SD memory card | — |
| Warranty | 64GB: 7-year limited manufacturer warranty on exact product page; regional terms apply; 128GB: 10-year limited manufacturer warranty on current product page; regional terms apply | 60 months |
Model-specific details
| Specification | SanDisk Ultra SD Memory Card | SanDisk microSDHC Class 4 32GB Memory Card |
|---|---|---|
| Model-specific details | 64GB · SDSDUNR-064G-GN3IN — Product series: Ultra SD 100MB/s; Operating temperature: -25°C to 85°C; Storage temperature: -40°C to 85°C; Manufacturer package contents: Full-size SD memory card; Maximum read speed: Up to 100 MB/s; Suitable recording use: capturing photos and Full HD video with compatible cameras | 128GB · SDSDUNB-128G-GN6IN — Product series: Ultra SD 140MB/s; Operating temperature: -25°C to 85°C; Storage temperature: -40°C to 85°C; Manufacturer package contents: Full-size SD memory card; Maximum read speed: Up to 140 MB/s; Suitable recording use: storing photographs and Full HD video in compatible SDXC cameras | 32GB · SDSDQM-032G-B35 — Product series: microSDHC Class 4; Operating temperature: -25°C to 85°C; Suitable recording use: expanding storage in compatible microSDHC phones and other devices |
Similarities
- Both are made by Sandisk.
In summary
Ultra SD Memory and microSDHC Class 4 are closely matched on the features compared here.
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