Model-specific details
- SanDisk microSDHC Class 4
- 16GB · SDSDQM-016G-B35 — Product series: microSDHC Class 4
- SanDisk Ultra SD Memory Card
- 64GB · SDSDUNR-064G-GN3IN — Product series: Ultra SD 100MB/s
Memory card comparison
SanDisk microSDHC Class 4 vs SanDisk Ultra SD Memory Card
Compare key specifications, features and design side by side.
01Selected  SanDisk microSDHC Class 4 16GB Memory Card
KSh 1,680In Stock | 02  SanDisk Ultra SD Memory Card
KSh 800In 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 32GB Memory CardKSh 1,750
SanDisk Extreme microSD 32GB Memory CardKSh 3,800
Our quick verdict
SanDisk Ultra SD Memory Card: 2.1 g.
Sustained write performance
- SanDisk microSDHC Class 4
- 4MB/s minimum sustained write
- SanDisk Ultra SD Memory Card
- 64GB: 10 MB/s minimum sustained write from speed classification
Card type
- SanDisk microSDHC Class 4
- MicroSDHC
- SanDisk Ultra SD Memory Card
- 64GB: SDXC, 128GB: SDXC
Speed class
- SanDisk microSDHC Class 4
- Class 4
- SanDisk Ultra SD Memory Card
- 64GB: Class 10 / U1
What matters most to you?
5 priorities selected.
SanDisk microSDHC Class 4
- 16GB.
- 16GB · SDSDQM-016G-B35 — Product series: microSDHC Class 4.
- 4MB/s minimum sustained write.
- microSDHC.
- Class 4.
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.
Detailed comparison
Explore the full specifications, section by section.
General
| Specification | SanDisk microSDHC Class 4 16GB Memory Card | SanDisk Ultra SD Memory Card |
|---|---|---|
| Brand | Sandisk | Sandisk |
Performance
| Specification | SanDisk microSDHC Class 4 16GB Memory Card | SanDisk Ultra SD Memory Card |
|---|---|---|
| Speed Class | Class 4 | 64GB: Class 10 / U1; 128GB: Class 10 / U1 |
| Read / Write Speed | — | 64GB: Up to 100 MB/s read; 128GB: Up to 140 MB/s read |
| Sustained Write Performance | 4MB/s minimum sustained write | 64GB: 10 MB/s minimum sustained write from speed classification; 128GB: 10 MB/s minimum sustained write from speed classification |
Storage
| Specification | SanDisk microSDHC Class 4 16GB Memory Card | SanDisk Ultra SD Memory Card |
|---|---|---|
| Brand / Model | SanDisk microSDHC Class 4 · SDSDQM-016G-B35 | SanDisk Ultra SD Memory Card; 64GB: SDSDUNR-064G-GN3IN; 128GB: SDSDUNB-128G-GN6IN |
| Storage Capacity | 16GB | 16GB / 32GB / 64GB / 128GB / 256GB / 512GB |
| Card Type | microSDHC | 64GB: SDXC; 128GB: SDXC |
| Interface / Bus | — | 64GB: UHS-I; 128GB: UHS-I |
Features & Compatibility
| Specification | SanDisk microSDHC Class 4 16GB Memory Card | SanDisk Ultra SD Memory Card |
|---|---|---|
| Compatibility | microSDHC-compatible host devices; check capacity support and the device recording requirements | 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 |
| Durability | Water, shock, temperature and X-ray resistance under manufacturer test conditions; no IP rating claimed | 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 |
Physical & Package
| Specification | SanDisk microSDHC Class 4 16GB Memory Card | SanDisk Ultra SD 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 | 60 months | 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 |
Model-specific details
| Specification | SanDisk microSDHC Class 4 16GB Memory Card | SanDisk Ultra SD Memory Card |
|---|---|---|
| Model-specific details | 16GB · SDSDQM-016G-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 | 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 |
Similarities
- Both are made by Sandisk.
In summary
microSDHC Class 4 and Ultra SD Memory are closely matched on the features compared here.
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