Samsung Galaxy Z Tri Fold vs Xiaomi 18 Fold
Quick Comparison
Samsung Galaxy Z Tri Fold has better RAM than Xiaomi 18 Fold. In terms of display resolution, Xiaomi 18 Fold has better resolution of 1672 x 2364 than Samsung Galaxy Z Tri Fold which has resolution of 2160 x 1584. Samsung Galaxy Z Tri Fold has more internal memory than Xiaomi 18 Fold
| Name | Samsung Galaxy Z Tri Fold | Xiaomi 18 Fold |
| RAM | 16 GB | 12 GB |
|---|---|---|
| Display | 10 in | 7.58 in |
| Internal Memory | 512 GB | 256 GB |
| Battery | 5600 mAh | 6000 mAh |
| Camera | 200 MP + 12 MP + 10 MP Triple | 200 MP + 50 MP + 50 MP Triple |
| Price | Rs. 219990 | Rs. 169999 |
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Detailed Comparison
Price And Launch
The launch Date of the first phone is December 02, 2025. The Expected cost of Samsung Galaxy Z Tri Fold is Rs. 219990. The launch Date of the second phone is September 07, 2026. The Expected cost of Xiaomi 18 Fold is Rs. 169999.
Display comparison
Samsung Galaxy Z Tri Fold has larger screen size of 10 inches in comparison to Xiaomi 18 Fold's 7.58 inch screen. Both the phones have LTPO AMOLED Screen Type. Xiaomi's phone has display density of 382 PPI & Samsung's phone has only 269 PPI display density. In terms of screen to body ratio, Xiaomi's phone has better screen to body ratio of ~ 90.6% than Samsung's phone ~ 89.6%. Both phones have same aspect ratio of 4:3.
Memory comparison
Samsung Galaxy Z Tri Fold's larger 16 GB RAM is better for playing games and all with respect to Xiaomi 18 Fold's lower 12 GB RAM. Samsung Galaxy Z Tri Fold has more Internal Memory (512 GB) than Xiaomi 18 Fold (256 GB).
Camera comparison
They both have the same 200 MP + 12 MP + 10 MP Triple Rear Camera. Xiaomi 18 Fold will be better choice if you're looking to click lot of selfies as it has better 16 MP + 16 MP Dual Front Camera in comparison to Samsung Galaxy Z Tri Fold's 10 MP + 10 MP Dual Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 16 and the second one on 17 version.
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Full Comparison
| Name | Samsung Galaxy Z Tri Fold | Xiaomi 18 Fold |
| General | ||
| Model | SM-D639B, SM-D639B/DS, SM-D639U, SM-D639U1, SM-D639N, SM-D6390 | |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | (Nano-SIM + Nano-SIM), (eSIM + eSIM) (max 2 at a time) | Nano SIM |
| eSIM Support | Yes | Yes |
| Device Type | Smartphone | Smartphone |
| Release Date | December 02, 2025 | September 07, 2026 |
| Design | ||
| Dimensions | 117.8 x 163.8 x 5 mm | |
| Weight | 309 g | 219 g |
| Bezel less | No | |
| Colors | Crafted Black | Gray, Silver, Red, Rose gold |
| Display | ||
| Type | Color LTPO AMOLED Screen (1B Colors) | Color LTPO AMOLED Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 10 inches, 1584 x 2160 pixels, 120 Hz | 7.58 inches, 2364 x 1672 pixels, 120 Hz |
| Aspect Ratio | 4:3 | 4:3 |
| PPI | ~ 269 PPI | ~ 382 PPI |
| Screen to Body Ratio | ~ 89.6% | ~ 90.6% |
| Brightness | 1600 nits (peak) | HDR10+, Dolby Vision, HDR Vivid, 4000 nits (peak) |
| HDR Support | Yes | Yes, HDR10+, Dolby Vision, HDR Vivid, |
| Adaptive Refresh Rate | Yes, LTPO | Yes |
| Features | Tri-foldable Dynamic LTPO AMOLED 2X, 120Hz, HDR | |
| Notch | Yes, Punch Hole | Yes, Punch Hole |
| Foldable Display | Yes | Yes |
| Dual Display | Yes, LTPO OLED, 6.5 inches, 1080 x 2520 pixels, Dynamic LTPO AMOLED 2X, 120Hz, HDR, 2600 nits (peak), Corning Gorilla Glass Ceramic 2 | Yes, LTPO AMOLED,, 5.38 inches, 1168 x 1712 pixels, HDR10+, Dolby Vision, HDR Vivid, 4000 nits (peak), 120Hz, Xiaomi Dragon Crystal Glass 3 |
| Memory | ||
| RAM | 16 GB | 12 GB |
| Storage | 512 GB | 256 GB |
| Storage Type | UFS 4.1 | |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| 5G | Yes | Yes |
| 5G Bands | 0), N40(2300), N41(2500), N77(3700), N78(3500) | |
| VoLTE | Yes, Dual Stand-By | Yes, Dual Stand-By |
| Vo5G | Yes | Yes |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Wifi Version | 802.11a/b/g/n/ac/ax/be 2.4GHz+5GHz+6GHz, EHT320, MIMO, 4096-QAM | |
| Ultra Wideband (UWB) Support | Yes | |
| Bluetooth | Yes, v5.4, A2DP, LE | Yes, v6.0 |
| USB | Yes, USB-C | Yes, USB-C v3.2 |
| USB Features | USB on-the-go, USB Charging | USB Tethering, USB on-the-go, USB Charging, USB Storage |
| IR Blaster | Yes | Yes |
| Extra | ||
| GPS | Yes, with tri-band A-GPS, GLONASS, BDS, GALILEO, QZSS, NavIC | GPS, Glonass, Beidou, Galileo, QZSS |
| Fingerprint Sensor | Yes, Side | Yes, Side |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass, Barometer | Aaccelerometer, Gyro, Proximity, Compass, Barometer |
| 3.5mm Headphone Jack | No | No |
| NFC | Yes | Yes |
| Water Resistance | Yes, 1 m upto 30 min | Yes, 1 m upto 30 min |
| IP Rating | IP48 | IP58/IP59 |
| Dust Resistant | Yes | Yes |
| Extra Features | Samsung Knox with Samsung Knox Vault, Dimensions Folded (HxWxD) 159.2 x 75.0 x 12.9 mm, Dimensions Unfolded (HxWxD) 159.2 x 214.1 x 3.9 mm (screen with the SIM tray) / 4.2 mm (center screen) / 4.0 mm (screen with the side button)** | Folded: 83.6 x 117.8 x 10.7 mm |
| Camera | ||
| Rear Camera | 200 MP ƒ/1.7 (Wide Angle) 24mm (wide), 1/1.3", 0.6µm, multi-directional PDAF, OIS 10 MP ƒ/2.4 (Telephoto) 67mm (telephoto), 1/3.94", 1.0µm, PDAF, OIS, 3x optical zoom 12 MP ƒ/2.2 (Ultra Wide) 13mm, 120˚ (ultrawide), 1/2.55", 1.4µm, dual pixel PDAF | 200 MP ƒ/1.7 (Wide Angle) 23mm (wide), 1/1.56", 0.5µm, PDAF, OIS 50 MP ƒ/2.8 (Telephoto) 80mm (telephoto), PDAF, OIS, 3.x optical zoom 50 MP ƒ/2.4 (Ultra Wide) |
| OIS | Yes | Yes |
| Auto Focus | Yes | Yes |
| Features | HDR, Panorama | Laser AF, color spectrum sensor, Leica lenses, HDR, panorama |
| Video Recording | 4K @ 60 fps UHD, 8K @ 30 fps UHD, 1080p @ 60 fps FHD | 8K @ 24 fps UHD, 4K @ 60 fps UHD, 1080p @ 60 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 10 MP ƒ/2.2 (Ultra Wide) Cover Camera: 10 MP ƒ/2.2 (Wide Angle) Punch Hole | 16 MP ƒ/2.2 (Wide Angle) 16 MP ƒ/2.2 (Cover camera:) Punch Hole |
| Front Video Recording | 4K @ 30 fps UHD, 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v16 | Android v17 |
| Custom UI | One UI 8 | HyperOS 4 |
| Chipset | Qualcomm Snapdragon 8 Elite | XRING O3 |
| CPU | 4.32 GHz, Octa Core Processor | 4.35 GHz, Octa Core Processor |
| Core Details | 2x Prime Core@4.32 GHz & 6x Performance Core@3.53 GHz | |
| GPU | Adreno 830 (1200 MHz) | Arm G2-Ultra NX MC16 |
| Java | No | No |
| Browser | Yes | Yes |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | MP3, M4A, 3GA, AAC, OGG, OGA, WAV, AMR, AWB, FLAC, MID, MIDI, XMF, MXMF, IMY, RTTTL, RTX, OTA, APE, DSF, DFF |
| Video | Yes | MP4, M4V, 3GP, 3G2, AVI, FLV, MKV, WEBM |
| FM Radio | No | No |
| Speaker Type | Stereo | |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 5600 mAh | 6000 mAh, Si/C Li-Ion Battery |
| Fast Charging | Yes, 45W Fast Charging | Yes, 67W Fast Charging |
| Wireless Charging | Yes, 15W | Yes, 50W |
| Reverse Charging | Yes | Yes |
| Reverse Wireless Charging | Yes | Yes |