Redmi 17 4G vs Vivo Y31d
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At a glance
Key specifications and important differences. Full details follow below.
| Feature |  Redmi 17 4G |  Vivo Y31d |
|---|---|---|
| Price | KSh 20,500 – KSh 22,500 | KSh 27,000 – KSh 32,500 |
| Display | 6.9-inch IPS LCD, 120Hz | IPS LCD, 120Hz, 1250 nits (HBM) |
| Processor | MediaTek Helio G91 Ultra (12nm) | Qualcomm Snapdragon 6s 4G Gen 2 |
| RAM | 4GB, 6GB | 6GB, 8GB |
| Storage | 128GB, 256GB | 128GB, 256GB |
| Rear camera | 50MP wide, f/1.8, PDAF; auxiliary lens | 50 MP wide PDAF; auxiliary lens |
| Battery | 7500mAh silicon-carbon Li-ion | Si/C Li-Ion 7200 mAh |
| Charging | 45W wired; 22.5W reverse wired | 44W wired; reverse wired; bypass charging |
| Weight | 232g | 219 g |
| Operating system | Android 16, HyperOS 3 | Android 16, OriginOS 6 |
| Network | GSM / HSPA / LTE | GSM / HSPA / LTE |
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Full specifications
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General
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| Brand | Redmi | Vivo |
| Model | Redmi 17 (4G) | Vivo Y31d |
| Announced | 10 August 2026 | 2026, January 16 (released 2026, January) |
Design
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| Dimensions | 170.1 × 78.4 × 8.8mm | 166.6 x 78.4 x 8.4 mm |
| Weight | 232g | 219 g |
| Build materials | Gorilla Glass 7i front, plastic frame and back | Glass front, plastic frame, plastic back |
Display
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| Display | 6.9-inch IPS LCD, 120Hz | IPS LCD, 120Hz, 1250 nits (HBM) |
| Screen resolution | 720 × 1600 pixels, 20:9, approximately 254ppi | 6.75 inches, 720 x 1570 pixels |
| Display protection | Corning Gorilla Glass 7i | — |
| Display features | 825 nits HBM brightness | 120Hz, 1250 nits |
Performance
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| Processor | MediaTek Helio G91 Ultra (12nm) | Qualcomm Snapdragon 6s 4G Gen 2 |
| CPU | Octa-core: 2 × 2.0GHz Cortex-A75 + 6 × 1.8GHz Cortex-A55 | Octa-core (4x2.9 GHz Cortex-A73 & 4x1.9 GHz Cortex-A53) |
| GPU | Mali-G52 MC2 | Adreno |
Memory & Storage
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| RAM | 4GB, 6GB | 6GB, 8GB |
| Storage | 128GB, 256GB | 128GB, 256GB |
| Storage technology | eMMC 5.1 | UFS 2.2 |
| Expandable storage | microSDXC, shared SIM slot | No (no card slot) |
Cameras
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| Rear camera | 50MP wide, f/1.8, PDAF; auxiliary lens | 50 MP wide PDAF; auxiliary lens |
| Front camera | 8MP wide, f/2.1 | 8 MP wide |
| Rear camera features | LED flash, HDR | LED flash, HDR, panorama |
| Rear camera video | 1080p at 30fps | 1080p@30fps |
| Front camera features | HDR | — |
| Front camera video | 1080p at 30fps | 1080p@30fps |
Battery & Charging
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| Battery | 7500mAh silicon-carbon Li-ion | Si/C Li-Ion 7200 mAh |
| Charging | 45W wired; 22.5W reverse wired | 44W wired; reverse wired; bypass charging |
Software
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| Operating system | Android 16, HyperOS 3 | Android 16, OriginOS 6 |
Network
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| Network | GSM / HSPA / LTE | GSM / HSPA / LTE |
| SIM | Dual nano-SIM | Nano-SIM + Nano-SIM |
Connectivity
| Specification | Redmi 17 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, GLONASS, Galileo, BDS | GPS, GALILEO, GLONASS, BDS, QZSS |
| Radio | FM radio | No |
| USB | USB Type-C 2.0 | USB Type-C 2.0, OTG |
Durability
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| Water resistance | IP64 dust and splash resistance | IP68/IP69 dust tight and water resistant |
Features
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| Sensors | Side-mounted fingerprint sensor, accelerometer, compass; virtual proximity sensing | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Colors | Black, Deep Blue, Lotus Purple, Oak Green | Glow White, Starlight Grey |
Audio
| Specification | Redmi 17 4G | Vivo Y31d |
|---|---|---|
| Loudspeakers | Stereo speakers | Yes, with stereo speakers |
| 3.5 mm headphone jack | Yes | No |
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