Best Memory Card for Ricoh GR IV
The GR IV left the GR III’s full-size SD slot behind. Ricoh’s sheet is microSD / microSDHC / microSDXC, UHS-I only — they print a 104 MB/s ceiling — plus about 53 GB already inside the body. That internal store holds ~995 14-bit DNGs at 26 MP. You can walk out with no card. The 2026 overflow card is a 128 GB SanDisk Extreme microSDXC: a brand Ricoh tested to 1 TB, V30 for the 1080/60p fill rate, twice the internal dump. It is not a UHS-II Extreme PRO, and it is not the GR III SD you already own.
Our Top Picks at a Glance
Reviewed August 2026 · Ricoh GR IV / HDF · ~53 GB internal · microSD UHS-I only · tested to 1 TB · FHD 60p / 4 GB or 25 min
microSDXC UHS-I V30. SanDisk is on Ricoh’s tested list. ~2× the 53 GB body. Format in the GR IV.
Check Price at Amazon Read full review ↓Same 128 GB, Class 10 / U1. JPEG and 1080/30p sit on that floor. Skip if you live on 60p DNG bursts.
Check Price at Amazon Read full review ↓Ricoh’s own 64 GB column: 1,117 RAW. The DB-120 is 250 CIPA shots — the cell empties first.
Check Price at Amazon Read full review ↓Disclosure: This page contains affiliate links. As an Amazon Associate affiliate, we earn a small commission from qualifying purchases at no extra cost to you.
Comparison Table
| Product | Best for | Bus / class | On GR IV | Price | Buy |
|---|---|---|---|---|---|
| SanDisk Extreme 128GB | Default overflow | UHS-I · V30 | ~2× the 53 GB body | ~$14–$22 | Check |
| SanDisk Ultra 128GB | Class 10 at 128 | UHS-I · U1 / C10 | JPEG / 30p without V30 tax | ~$10–$16 | Check |
| SanDisk Ultra 64GB | Ricoh’s 64 GB column | UHS-I · U1 / C10 | 1,117 RAW · battery dies first | ~$7–$12 | Check |
| Kioxia Exceria Plus 128GB | Other tested brand | UHS-I · V30 | Kioxia is on the same FAQ list | ~$12–$20 | Check |
| Extreme PRO / UHS-II | Skip as default | UHS-II · V30/V90 | Pins this slot will not use | $25+ | Check |
| GR III full-size SD | Skip (wrong size) | SDXC | Will not enter the door | — | Check |
How We Picked These Cards
- What Ricoh published: GR IV / GR IV HDF specification (ricoh-imaging.co.jp, updated 17 Dec 2025): 25.74 MP APS-C, 14-bit DNG + JPEG, 26 MP L at 6192×4128 (3:2). Storage: internal memory approx. 53 GB, plus microSD / microSDHC / microSDXC conforming to UHS-I. Movie: MPEG-4 AVC / H.264 MOV, Full HD 1920×1080 at 60p / 30p / 24p; clip stops at 25 minutes or 4 GB, or if the body overheats. USB-C: charge / MTP / DisplayPort. Battery DB-120, 250 stills CIPA, ~240 min playback. 262 g with battery and card. FAQ (Sept 2025): slot is microSD in size; UHS-I on HC / XC; maximum transfer speed of the UHS-I standard is 104 MB/s. Tested cards: Kioxia (Toshiba) and SanDisk — microSDHC to 32 GB, microSDXC to 1 TB. Video recommendation: Speed Class 6 or higher. Format a new or computer-used card in the camera. You can record to the 53 GB body with no card inserted. Recording destination: Internal Memory Priority or Memory Card Priority.
- 53 GB changes the job; 60p sits on Class 10, not on V90: Ricoh’s own storage table: 53 GB holds 995 RAW or 774 RAW+JPEG at 26 MP 3:2, or 3,498 JPEG L; 64 GB holds 1,117 / 870 / 3,929. FHD 60p: 1:26′56″ on internal, 1:37′38″ on 64 GB — a fill rate around 10 MB/s, which is a U1 / Class 10 floor, not Class 6’s 6 MB/s. The printed “Class 6 or higher” is the legal minimum; 60p is why V30 is the cheap default and Ultra is Value, not Overall. A 4 GB clip cap means 60p will hit the file limit before 25 minutes. UHS-II / V90 / Extreme PRO do not raise the 104 MB/s bus Ricoh printed. The DB-120 is 250 CIPA frames — four cells to fill the internal RAW count — so a 1 TB card is a tested ceiling, not a day-one kit.
- The box you actually buy: A dedicated microSDXC, 64 or 128 GB, UHS-I, Class 10 minimum (V30 if 60p matters), formatted in the GR IV. Extreme 128 GB. Ultra 128 GB. Ultra 64 GB if the body already holds the walk. Kioxia Exceria / Exceria Plus 128 GB if you want the other name on Ricoh’s tested list. Skip Extreme PRO and any UHS-II microSD as the default. Skip the GR III full-size SD. Skip 2 TB until Ricoh extends the tested table past 1 TB. Skip a phone card that still has folders on it.
Best Memory Card for Ricoh GR IV: Detailed Reviews
SanDisk Extreme 128GB microSDXC View on Amazon View on B&H
| Model | SanDisk Extreme microSDXC UHS-I · 128 GB V30 (256 GB same family) |
|---|---|
| On GR IV | UHS-I slot, 104 MB/s printed ceiling. 128 GB ≈ 2× Ricoh’s 64 GB column (~2,200 RAW) |
| Why V30 | 60p fill rate on the spec table is ~10 MB/s. V30’s 30 MB/s floor is the cheap headroom. V90 is unused |
| Tested list | SanDisk microSDXC to 1 TB (Ricoh FAQ, Sept 2025). Format in-camera |
| Not this listing | Extreme PRO / UHS-II. Extreme full-size SD from a GR III |
Why it fits the GR IV. This body already has a 53 GB disk. The card is overflow, a second destination, and a way to leave the internals for a clean dump. Extreme 128 GB is UHS-I V30 on a brand Ricoh actually clocked, at a capacity that doubles the body without pretending you need 1 TB for a 250-shot battery. The GR III SD in the drawer is the wrong shape. Extreme PRO / React Plus UHS-II is the wrong bus. Keep Internal Memory Priority if you want the 53 GB as the first write; flip to Memory Card Priority when this card is the archive. USB-C MTP will pull either store. 256 GB Extreme if the card stays in for a week of DNG.
Skip this if you only shoot JPEG and want the same 128 GB cheaper — Ultra. Skip every listing that says Extreme PRO and shows extra rows of pins.
- SanDisk is on Ricoh’s tested XC list
- V30 covers the 60p fill rate without a UHS-II tax
- 128 GB is twice the body, not a 1 TB souvenir
- Amazon mixes Extreme PRO UHS-II into the same “Extreme” row
- Will not make the DB-120 last past 250 CIPA frames
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SanDisk Ultra 128GB microSDXC View on Amazon View on B&H
| Model | SanDisk Ultra microSDXC · 128 GB · U1 / C10 |
|---|---|
| On GR IV | Class 10 is the 10 MB/s floor that matches Ricoh’s 60p capacity math |
| Video | Ricoh printed Class 6. Ultra clears that. 30p / 24p are comfortable; 60p has less headroom than Extreme |
| Still math | Same ~2,200 RAW ballpark as Extreme 128. JPEG L is thousands |
| SKU trap | Ultra microSD HC 32 GB. A2 / “phone” kits that arrive full of folders |
Why it is Value. Most GR IV days are 14-bit DNG or JPEG L, not an hour of 1080/60p. Ultra 128 GB is still SanDisk, still XC, still twice the internal store, and it is the card you buy when Extreme’s V30 is a $6 habit. The 60p table sits right on a U1 floor — if Record is the job, stay on Extreme. If the walk is stills and the 53 GB is the first write, Ultra is the overflow that does not pretend this is a Cinema camera.
Skip this if 60p is weekly. Then Extreme 128. Skip 32 GB Ultra; that is the HC line Ricoh already tested and outgrew.
- 128 GB at Class 10 — enough for the printed video minimum
- Same brand Ricoh listed
- Cheaper than Extreme at the same capacity
- No V30 headroom for 60p
- Search rows mix phone Ultra kits
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SanDisk Ultra 64GB microSDXC View on Amazon View on B&H
| Model | SanDisk Ultra microSDXC · 64 GB · U1 / C10 |
|---|---|
| Ricoh’s 64 GB table | 1,117 RAW · 870 RAW+ · 3,929 JPEG L · 1:37′38″ FHD 60p |
| Battery | DB-120: 250 CIPA stills / 240 min playback. The cell ends the walk, not 64 GB |
| Internal already | 53 GB ≈ 995 RAW. This card is a second destination, not the only disk |
| Buy 128 instead if | The card never comes out, or you run Memory Card Priority all week |
Why it is Budget. Ricoh already published the 64 GB column. Ultra 64 GB is that column on a Class 10 card. You do not need V30 to hold 1,117 DNGs you will not shoot on one charge. Keep the 53 GB internals as the daily store and this card as the swap / copy target (Playback can copy files). It is not a 32 GB from a phone, and it is not a reason to keep a GR III SD in an adapter — the door is microSD.
Skip this if you refuse to dump. Then Extreme 128. Skip using it as the only 60p disk for a long clip day.
- Matches Ricoh’s published 64 GB counts
- Battery-limited, not capacity-limited, for stills
- Cheapest tested-brand XC that is not a 32 GB HC
- Half the overflow of the 128 GB cards
- U1, not V30
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If You Need Something Else
Ricoh also clocked Kioxia. The search row will still try to sell you UHS-II. One is on the FAQ. One is not this slot.
Kioxia Exceria Plus 128GB View on Amazon View on B&H
| Why it is here | FAQ tested list is Kioxia (Toshiba) and SanDisk, XC to 1 TB |
|---|---|
| Class | UHS-I V30 on current Exceria Plus microSDXC |
| Vs Extreme | Same job. Buy if Extreme is out of stock, not as a faster card |
This is the second brand Ricoh bothered to name. It is not Overall because SanDisk Extreme is the easier re-order and the same UHS-I V30 class. Confirm microSDXC 128 GB V30, not an older Exceria U1 32 GB or an Exceria Pro UHS-II sibling.
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SanDisk Extreme PRO / UHS-II microSD View on Amazon View on B&H
| What the box sells | UHS-II pins, V30 or V90, 200–300 MB/s stickers |
|---|---|
| What Ricoh printed | UHS-I. Maximum transfer 104 MB/s |
| Video on this body | 1080p, 4 GB or 25 min. Not 8K, not ALL-I 600 Mbps |
Extreme PRO and Kingston Canvas React Plus microSD are real products. The GR IV will talk to them as UHS-I cards. You pay for a second row of pins and a V90 floor this encoder will not use. The old version of this page led with Extreme PRO. That is the skip now. Buy Extreme (no PRO) 128 GB.
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Frequently Asked Questions
Can I use the GR IV with no memory card?
Yes. Ricoh: about 53 GB of built-in memory; you can record without a microSD. FAQ first-use steps say the same. A card is overflow and a second destination, not a requirement to fire the shutter.
Will my GR III / GR IIIx SD cards work?
No. The GR IV slot is microSD. Full-size SD from the GR III will not go in. There is no adapter path that makes that a good idea. Buy a microSDXC and format it in this body.
Do I need a UHS-II or V90 card?
No. Ricoh: UHS-I, 104 MB/s ceiling. Video recommendation is Class 6 or higher. 1080/60p on their capacity table sits near a Class 10 / U1 floor; V30 is plenty. V90 / UHS-II is unused bus.
Is 2 TB safe? Ricoh tested what?
As of September 2025, Ricoh’s compatibility note is Kioxia and SanDisk microSDXC up to 1 TB. “Tested” is not a warranty. Do not treat 2 TB as the published max.
Should I format the card in the camera?
Yes. FAQ: new cards, or cards that lived in a computer, get formatted in the GR IV. That erase is complete. Pick Internal Memory Priority or Memory Card Priority after.
Final Verdict
For a Ricoh GR IV, buy SanDisk Extreme 128 GB if you want V30 overflow on a brand Ricoh tested to 1 TB. Want the same 128 GB cheaper? Ultra. Want the published 64 GB column? Ultra 64. The body already holds ~995 DNGs. Skip UHS-II Extreme PRO. Skip the GR III full-size SD. Format in the camera. Class 6 is the printed video line; 60p is why V30 exists and V90 does not.