Eye-Fi was one specific brand of wireless SD card; “Wi-Fi SD card” is the broader category, which includes products such as Toshiba FlashAir. Today, neither is a straightforward supported wireless-transfer option: Eye-Fi’s original wireless service path ended in 2016, and support and app distribution for FlashAir W-04 ended March 31, 2026. Compatibility also depends on the exact card generation and camera model.
Eye-Fi vs. Wi-Fi SD card: the basic difference
Eye-Fi is a brand name. A Wi-Fi SD card is any SD card designed to transfer photos wirelessly, and different brands and generations may use different workflows and software. Toshiba FlashAir is one example of a separate Wi-Fi SD card product family.
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That distinction matters when comparing products: Eye-Fi and FlashAir are not interchangeable names, and the available manufacturer information does not establish that every card from either family connects or transfers in the same way. Check the documentation for the exact card and camera rather than assuming a shared setup process.
What changed with support and software?
Eye-Fi wireless service is legacy
SanDisk’s support notice says Eye-Fi announced on June 30, 2016 that it would stop supporting products including SanDisk Eye-Fi SD cards. The notice advised users to stop wireless use no later than September 16, 2016 because some dependent services would shut down. That history makes the original Eye-Fi wireless experience a legacy setup; it does not establish whether an individual card remains usable for ordinary SD storage. SanDisk’s Eye-Fi support notice
#1 Best Overall
- SUPPORTED FORMATS: WiFi SD adapter supports the function of shooting and viewing, supporting JPG, PNG, BMP photo formats, and supporting MP4, AVI, MOV video formats.
- SIMPLE OPERATION: Insert your SDHC or TF card into the WiFi SD adapter, you can access photos and videos sent wirelessly from the camera to your smartphone or tablet via Wifi for sharing.
- SUPPORT WIFI SETTINGS: WiFi SD adapter supports WiFi, SD settings, WiFi password, AP mode and station mode switching, IP, channel, number or user, SSID.
- ABS MATERIAL: Wifi adapter is made of sturdy ABS material, which is wear resistant and durable, and can be used for a long time.
- APPLICABLE DEVICES: Wifi adapter can connect up to 3 devices at the same time, support for Android, for IOS devices.
FlashAir W-04 app support has ended
Kioxia’s notice, dated December 11, 2025, identifies the FlashAir SD-UWA W-04 models SD-UWA016G, SD-UWA032G, and SD-UWA064G as discontinued. It states that related app distribution and product support ended March 31, 2026. Do not treat the FlashAir app as currently supported. Kioxia’s FlashAir W-04 notice
Will one work with your camera?
There is no universal compatibility guarantee. A camera may recognize one FlashAir generation but not support Eye-Fi features, or may require specific setup. For example, Ricoh’s WG-7 guidance lists compatible FlashAir types, requires firmware updates and initial card setup, and states: “Eye-Fi linkage function is not supported.” It also warns not to format the FlashAir card in the camera. This is guidance for the WG-7, not a rule that can be applied to other camera models. Ricoh WG-7 FAQ
Rank #2
- Supported Formats: SD adapter supports the function of shooting and viewing, supporting JPG, PNG, BMP photo formats, and supporting MP4, AVI, MOV video formats.
- Simple Operation: Insert your SDHC or TF card into the WiFi SD adapter, you can access photos and videos sent wirelessly from the camera to your smartphone or tablet via Wifi for sharing.
- Support WiFi Settings: SD adapter supports WiFi, SD settings, password, AP mode and station mode switching, IP, channel, number or user, SSID.
- ABS Material: adapter is made of sturdy ABS material, which is wear resistant and , and can be used for a long time.
- Applicable Devices: adapter can connect up to 3 devices at the same time, support for Android, for IOS devices.
Kioxia’s W-04 checked-operation list is likewise a model-specific reference. It says transfer procedures can vary depending on whether a device has a FlashAir menu, and that its operation checks do not cover server-upload or peer-to-peer functions. A listed camera/device check should not be read as a guarantee for every feature or every setup. Kioxia FlashAir checked-operation list
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Some camera makers documented a workflow in which users configured Eye-Fi settings, enabled the camera’s Eye-Fi option where available, and then transferred photos after shooting or when the camera started with pending images. Casio describes that behavior for applicable cameras, but it is a description of the documented workflow—not evidence that the discontinued Eye-Fi wireless services work now. Casio Eye-Fi camera FAQ
Rank #3
- Supported Formats: WiFi SD adapter supports the function of shooting and viewing, supporting JPG, PNG, BMP photo formats, and supporting MP4, AVI, MOV video formats.
- Simple Operation: Insert your SDHC or TF card into the WiFi SD adapter, you can access photos and videos sent wirelessly from the camera to your smartphone or tablet via Wifi for sharing.
- Support WiFi Settings: WiFi SD adapter supports WiFi, SD settings, WiFi password, AP mode and station mode switching, IP, channel, number or user, SSID.
- ABS Material: Wifi adapter is made of sturdy ABS material, which is wear and durable, and can be used for a long time.
- Applicable Devices: Wifi adapter can connect up to 3 devices at the same time, support for Android, for IOS devices.
What to check before buying or trying a used card
- Identify the exact card. Record the brand, generation, model number, and capacity. “Wi-Fi SD” alone is not enough to determine its setup or compatibility.
- Check the camera maker’s documentation. Search for your exact camera model and the card generation. Confirm supported card types, firmware requirements, setup steps, and any exclusions.
- Confirm software and setup access. Establish whether the required app or configuration tools are still available and supported. For FlashAir W-04, Kioxia says app distribution and support ended March 31, 2026.
- Ask about the individual card’s condition. A used listing does not prove that the card works, that its wireless features are functional, or that its original service flow remains available.
- Separate storage from wireless transfer. A card’s wireless support history does not by itself tell you whether that particular card can still store files as an ordinary SD card.
What replaced Eye-Fi?
FlashAir W-04 is a historical alternative to compare, not a current supported replacement: Kioxia discontinued that series and ended its related app distribution and product support in 2026. The available manufacturer guidance does not establish a single direct replacement compatible with every camera. If you need wireless transfers now, choose a solution only after confirming it supports your exact camera and that its required software and services are available.
Quick Recap
Best Value
- [4K Ultra HD] Read/Write up to 95/40 MB/s. 4K Ultra HD video displaying/recording
- [Compatibility] Storage for Camera, Security Camera, Action Camera, Sports Camera, Laptop, Tablet, PC, Smartphones. IMPORTANT DEVICE COMPATIBILITY: This 128GB card is natively formatted to exFAT. If using with older security cameras, dash cams, or Android phones, you must format the card to FAT32 using your device settings prior to use.
- [Environment] Waterproof, shockproof, temperature-proof and X-Ray proof
- [Support] Gigastone 5-year limited warranty
Rank #4
- Widely Used: The 32 GB micro SD card is perfect for Android smartphones, tablets, digital cameras, game consoles, dash cameras, drones and surveillance system etc; It can use to store or back up high-res photos, videos, documents, music and more
- Fast Transfer Speed: The TF memory card adopts Speed Class UHS-I(U1) and Class 10(C10) provides you with 90MB/s of read speed and 25MB/s of write speed, supports full HD video recording
- Reliability & Security: The Micro SD card uses high-quality chip, features water-resistant, anti-magnetic, shockproof, high or low temperature resistant, and always keeps data safe
- 2 Pack 32 GB Micro SD Card: One mini SD card isn’t enough to use, 2 pack memory cards with great performance are great for you to use in different devices at the same time, it’s more convenient in daily life and work
- Note: By default the 32 GB micro SD card is formatted as FAT32 while 64 GB or above formatted as exFAT. Actual available capacity for data storage is less than as listed on the products due to formatting and other functions. 1GB=1,000,000,000 bytes
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