CMF Phone 1 vs Vivo Y31d
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At a glance
Key specifications and important differences. Full details follow below.
| Feature |  CMF Phone 1 |  Vivo Y31d |
|---|---|---|
| Price | KSh 33,500.00 | KSh 27,000 – KSh 32,500 |
| Display | AMOLED, 120Hz, 960Hz PWM, 500 nits (typ), 2000 nits (peak) | IPS LCD, 120Hz, 1250 nits (HBM) |
| Processor | Mediatek Dimensity 7300 (4 nm) | Qualcomm Snapdragon 6s 4G Gen 2 |
| RAM | 6GB / 8GB | 6GB, 8GB |
| Storage | 128GB / 256GB | 128GB, 256GB |
| Rear camera | 50 MP, f/1.8, (wide), PDAF; auxiliary lens | 50 MP wide PDAF; auxiliary lens |
| Battery | 5000 mAh | Si/C Li-Ion 7200 mAh |
| Charging | 33W wired, 5W reverse wired | 44W wired; reverse wired; bypass charging |
| Weight | 197 g or 202 g (6.95 oz) | 219 g |
| Operating system | Android 14, upgradable to Android 16, up to 2 major OS updates, Nothing OS 4.0 | Android 16, OriginOS 6 |
| Network | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE |
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Full specifications
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General
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| Brand | — | Vivo |
| Model | CMF Phone 1 | Vivo Y31d |
| Announced | 2024, July 08 | 2026, January 16 (released 2026, January) |
Design
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| Dimensions | 164 x 77 x 8.2 mm (6.46 x 3.03 x 0.32 in) | 166.6 x 78.4 x 8.4 mm |
| Weight | 197 g or 202 g (6.95 oz) | 219 g |
| Build materials | Glass front, plastic back or silicone polymer back (eco leather) | Glass front, plastic frame, plastic back |
Display
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| Display | AMOLED, 120Hz, 960Hz PWM, 500 nits (typ), 2000 nits (peak) | IPS LCD, 120Hz, 1250 nits (HBM) |
| Screen resolution | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) | 6.75 inches, 720 x 1570 pixels |
| Display features | 6.67 inches (~85.1% screen-to-body ratio) | 120Hz, 1250 nits |
Performance
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| Processor | Mediatek Dimensity 7300 (4 nm) | Qualcomm Snapdragon 6s 4G Gen 2 |
| CPU | Octa-core (4x2.5 GHz Cortex-A78 & 4x2.0 GHz Cortex-A55) | Octa-core (4x2.9 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53) |
| GPU | Mali-G615 MC2 | Adreno |
Memory & Storage
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| RAM | 6GB / 8GB | 6GB, 8GB |
| Storage | 128GB / 256GB | 128GB, 256GB |
| Storage technology | — | UFS 2.2 |
| Expandable storage | microSDXC | No (no card slot) |
Cameras
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| Rear camera | 50 MP, f/1.8, (wide), PDAF; auxiliary lens | 50 MP wide PDAF; auxiliary lens |
| Front camera | 16 MP, f/2.0, (wide) | 8 MP wide |
| Rear camera features | LED flash, panorama, HDR | LED flash, HDR, panorama |
| Rear camera video | 4K@30fps, 1080p@30/60fps, gyro-EIS | 1080p@30fps |
| Front camera video | 1080p@30fps | 1080p@30fps |
Battery & Charging
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| Battery | 5000 mAh | Si/C Li-Ion 7200 mAh |
| Charging | 33W wired, 5W reverse wired | 44W wired; reverse wired; bypass charging |
Software
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| Operating system | Android 14, upgradable to Android 16, up to 2 major OS updates, Nothing OS 4.0 | Android 16, OriginOS 6 |
Network
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| Network | GSM / HSPA / LTE / 5G | GSM / HSPA / LTE |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
Connectivity
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| NFC | No | No |
| Bluetooth | 5.3, A2DP, BLE | 5.1, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac/6, dual-band | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| Positioning | GPS, GALILEO, GLONASS, BDS, QZSS | GPS, GALILEO, GLONASS, BDS, QZSS |
| Radio | No | No |
| USB | USB Type-C | USB Type-C 2.0, OTG |
Durability
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| Water resistance | Dust and splash resistant | IP68/IP69 dust tight and water resistant |
Features
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Colors | Black, Orange, Light Green | Glow White, Starlight Grey |
Audio
| Specification | CMF Phone 1 | Vivo Y31d |
|---|---|---|
| Loudspeakers | Yes | Yes, with stereo speakers |
| 3.5 mm headphone jack | No | No |
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