Infinix Note 50 Pro 4G vs Vivo Y31d
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At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Infinix Note 50 Pro 4G |  Vivo Y31d |
|---|---|---|
| Price | KSh 30,000.00 | KSh 27,000 – KSh 32,500 |
| Display | 6.78-inch AMOLED, 1B colors | IPS LCD, 120Hz, 1250 nits (HBM) |
| Processor | MediaTek Helio G100 Ultimate (6 nm) | Qualcomm Snapdragon 6s 4G Gen 2 |
| RAM | 8GB, 12GB | 6GB, 8GB |
| Storage | 256GB | 128GB, 256GB |
| Rear camera | 50 MP f/1.9 wide, PDAF, OIS + 8 MP f/2.2 ultrawide (112°) | 50 MP wide PDAF; auxiliary lens |
| Battery | 5200 mAh | Si/C Li-Ion 7200 mAh |
| Charging | 90W wired (100% in 38 min), 30W wireless MagCharge, 10W reverse wired, reverse wireless, bypass charging | 44W wired; reverse wired; bypass charging |
| Weight | 198 g | 219 g |
| Operating system | Android 15, up to 2 major OS updates, XOS 15 | Android 16, OriginOS 6 |
| Network | GSM / HSPA / LTE | GSM / HSPA / LTE |
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Full specifications
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General
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| Brand | Infinix | Vivo |
| Model | Note 50 Pro 4G | Vivo Y31d |
| Announced | 2025, March 04 | 2026, January 16 (released 2026, January) |
Design
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| Dimensions | 163.3 x 74.4 x 7.3 mm | 166.6 x 78.4 x 8.4 mm |
| Weight | 198 g | 219 g |
| Build materials | Glass front, aluminum frame | Glass front, plastic frame, plastic back |
Display
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| Display | 6.78-inch AMOLED, 1B colors | IPS LCD, 120Hz, 1250 nits (HBM) |
| Screen resolution | 1080 x 2436 pixels (~393 ppi) | 6.75 inches, 720 x 1570 pixels |
| Display features | 144Hz, 2160Hz PWM, 1300 nits peak | 120Hz, 1250 nits |
Performance
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| Processor | MediaTek Helio G100 Ultimate (6 nm) | Qualcomm Snapdragon 6s 4G Gen 2 |
| CPU | Octa-core (2x2.2 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) | Octa-core (4x2.9 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53) |
| GPU | Mali-G57 MC2 | Adreno |
Memory & Storage
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| RAM | 8GB, 12GB | 6GB, 8GB |
| Storage | 256GB | 128GB, 256GB |
| Storage technology | UFS 2.2 | UFS 2.2 |
| Expandable storage | No | No (no card slot) |
Cameras
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| Rear camera | 50 MP f/1.9 wide, PDAF, OIS + 8 MP f/2.2 ultrawide (112°) | 50 MP wide PDAF; auxiliary lens |
| Front camera | 32 MP f/2.2 wide | 8 MP wide |
| Rear camera features | Dual-LED flash, HDR, panorama | LED flash, HDR, panorama |
| Rear camera video | 1440p@30fps, 1080p@30/60/240fps | 1080p@30fps |
| Front camera video | 1080p@30fps | 1080p@30fps |
Battery & Charging
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| Battery | 5200 mAh | Si/C Li-Ion 7200 mAh |
| Charging | 90W wired (100% in 38 min), 30W wireless MagCharge, 10W reverse wired, reverse wireless, bypass charging | 44W wired; reverse wired; bypass charging |
Software
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| Operating system | Android 15, up to 2 major OS updates, XOS 15 | Android 16, OriginOS 6 |
Network
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| Network | GSM / HSPA / LTE | GSM / HSPA / LTE |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
Connectivity
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| NFC | Yes (market/region dependent) | No |
| Bluetooth | 5.4, A2DP, LE | 5.1, A2DP, LE |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n/ac, dual-band | Wi-Fi 802.11 a/b/g/n/ac, dual-band |
| Positioning | GPS | GPS, GALILEO, GLONASS, BDS, QZSS |
| Radio | FM radio | No |
| USB | USB Type-C 2.0, OTG | USB Type-C 2.0, OTG |
Durability
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| Water resistance | IP64 dust tight and water resistant (water splashes) | IP68/IP69 dust tight and water resistant |
Features
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, compass, heart rate, SpO2; virtual proximity sensing | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Colors | Titanium Grey, Enchanted Purple, Racing Edition, Shadow Black | Glow White, Starlight Grey |
Audio
| Specification | Infinix Note 50 Pro 4G | Vivo Y31d |
|---|---|---|
| Loudspeakers | Stereo speakers, tuned by JBL | Yes, with stereo speakers |
| 3.5 mm headphone jack | No | No |
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