Device comparison
Two devices. One clear decision.
Choose the exact models, then compare every available specification in one aligned view.
Missing information stays missing. Only stored specifications are shown.
Complete comparison
Full specifications
Every available group and stored value, aligned by field.
LAUNCH DATE3 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| Announced | August 10, 2022 | 2026, June 30 |
| Released | 2022-08-25 | 2026, June 30 |
| Status | Available | Available |
NETWORK6 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| 2G Bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G Bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G LTE | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 66 | 1, 3, 4, 5, 7, 8, 19, 28, 34, 38, 39, 40, 41, 42, 48, 66 |
| 5G | SA/NSA/Sub6 | 1, 3, 5, 7, 8, 28, 38, 40, 41, 48, 66, 77, 78 SA/NSA |
| Speed | LTE, 5G | HSPA, LTE, 5G |
| Technology | 5G/4G/LTE/GSM | GSM / WCDMA / LTE / 5G |
BODY5 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| Build | Glass front (Gorilla Glass Victus+) (folded), plastic front (unfolded), glass back (Gorilla Glass Victus+), aluminum frame | Glass front, Aluminum frame |
| Dimensions | Unfolded: 155.1 x 130.1 x 6.3 mm Folded: 155.1 x 67.1 x 14.2-15.8 mm | 162.91 x 77.93 x 8.18 mm |
| IP Rating | IPX8 water resistant (up to 1.5m for 30 min), no dust rating | IP68/IP69 dust tight and Water resistant (high pressure water jets; immersible up to 1.5m for 30 min) |
| SIM | Nano-SIM + eSIM Nano-SIM + Nano-SIM + eSIM (max 2 at a time) | Dual Nano-SIM |
| Weight | 263 g (9.28 oz) | 227 g |
DISPLAY7 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| Brightness | 1200 nits (peak) | 3500 nits (peak) |
| Protection | Cover display: Dynamic AMOLED 2X, 120Hz, Corning Gorilla Glass Victus+ 6.2 inches, 904 x 2316 pixels, 23.1:9 ratio | — |
| Refresh Rate | 120Hz | 165Hz |
| Resolution | 1812 x 2176 pixels (~373 ppi density) | 1280 x 2772 pixels |
| Screen-to-body | ~90.9% | ~90.3% |
| Size | 7.6 inches, 183.2 cm2 (~90.9% screen-to-body ratio) | 6.83 inches |
| Type | Foldable Dynamic AMOLED 2X, 120Hz, HDR10+, 1200 nits (peak) | AMOLED |
PLATFORM4 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| CPU | Octa-core (1x3.19 GHz Cortex-X2 & 3x2.75 GHz Cortex-A710 & 4x1.80 GHz Cortex-A510) | Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M) |
| Chipset | Qualcomm SM8475 Snapdragon 8+ Gen 1 (4 nm) | Qualcomm Snapdragon 8 Elite |
| GPU | Adreno 730 | Adreno 830 (1200 MHz) |
| OS | Android 12L, up to 4 major Android upgrades, One UI 6.1.1 | Android 16; HyperOS |
MEMORY5 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| Card slot | No | No |
| Internal | 256GB, 512GB, 1TB | 256 / 512 GB |
| RAM | 12GB RAM | 12 / 16 GB |
| Storage Type | — | UFS 4.1 |
| Storage/RAM variants | 256GB, 512GB, 1TB; 12GB RAM | 256 / 512 GB; 12 / 16 GB RAM |
MAIN CAMERA3 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| Features | LED flash, HDR, panorama | Color spectrum sensor, LED Flash, Panorama, HDR |
| MAIN CAMERA | 50 MP, f/1.8, 23mm (wide), 1/1.56", 1.0µm, dual pixel PDAF, OIS 10 MP, f/2.4, 66mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP, f/2.2, 12mm, 123˚ (ultrawide), 1/3.06", 1.12µm | 50 MP main with OIS; 8 MP ultrawide |
| Video | 8K@24fps, 4K@60fps, 1080p@60/240fps (gyro-EIS), 720p@960fps (gyro-EIS), HDR10+ | 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, 720p@1920fps, gyro-EIS, HDR10+ |
SELFIE CAMERA3 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| Features | HDR | HDR |
| Selfie camera | 10 MP, f/2.2 (cover); 4 MP, f/1.8 (under display) | 20 MP |
| Video | 4K@30/60fps, 1080p@30/60fps, gyro-EIS | 4K@30/60fps, 1080p@30fps |
SOUND2 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| 3.5mm jack | No | No |
| Loudspeaker | Yes, with stereo speakers | Yes, with Stereo Speakers |
COMMUNICATION6 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| Bluetooth | 5.2, A2DP, LE, aptX HD | 5.4, A2DP, LE, LHDC 5.0, ASHA, Auracast |
| NFC | Yes | Yes |
| Positioning | GPS, GLONASS, GALILEO, BDS | Yes |
| Radio | No | No |
| USB | USB Type-C 3.2, OTG | USB Type-C |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6/7, dual-band, Wi-Fi Direct |
FEATURES1 field
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer | Fingerprint (under display, optical), accelerometer, proximity, gyro, compass |
BATTERY3 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| Capacity | 4400 mAh | 8550mAh |
| Charging Type | 25W wired, 50% in 30 min 15W wireless 4.5W reverse wireless | 100W wired; 22.5W reverse wired |
| Type | Li-Po 4400 mAh | Non-removable Si/C Li-Ion Battery |
ADDITIONAL INFORMATION5 fields
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| Colors | Graygreen, Phantom Black, Beige, Burgundy | Black, Blue, Silver |
| Compatibility | — | China |
| Launch Price (USD) | $799.99 (reference only — see Price in Nigeria above for the actual retail price) | — |
| Models | SM-F936B, SM-F936B/DS, SM-F936U, SM-F936U1, SM-F936N, SM-F936W, SM-F9360 | Redmi K90 Ultra 5G, 2604FRK1EC |
| Price in Nigeria | ₦530,000 (Seller price) | ₦1,200,000 (Stored estimate) |
SECURITY1 field
| Specification | Galaxy Z Fold4 | Redmi K90 Ultra |
|---|---|---|
| Security | Biometric security: Fingerprint (side-mounted). | Biometric security: Fingerprint (under display, optical). |