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 | Spark 10 | C66 |
|---|---|---|
| Announced | March 13, 2023 | 22 December 2025 (official Oukitel store listing) |
| Released | 2023, April | 22 December 2025 |
| Status | Available | Available |
NETWORK7 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | GSM B2 / B3 / B5 / B8 |
| 3G Bands | HSDPA 850 / 900 / 2100 | WCDMA B1 / B2 / B4 / B5 / B8 |
| 4G LTE | 1, 3, 5, 7, 8, 20, 38, 40, 41 | FDD 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 25, 26, 28AB, 66; TDD 34, 38, 39, 40, 41 |
| 5G | No | No |
| EDGE/GPRS | — | Yes |
| Speed | LTE | HSPA, LTE |
| Technology | 4G/LTE/GSM | GSM / HSPA / LTE |
BODY5 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| Build | Glass front, plastic frame, plastic back | Glass front (Panda glass) |
| Dimensions | 163.9 x 75.4 x 8.4 mm (6.45 x 2.97 x 0.33 in) | 164.5 x 78 x 8.7 mm |
| IP Rating | No IP rating | — |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM (or Nano-SIM + microSD) |
| Weight | 202 g (7.13 oz) | 195 g |
DISPLAY7 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| Brightness | 436 nits (peak, measured) | 450 nits |
| Protection | — | Panda glass |
| Refresh Rate | 90Hz | 120Hz |
| Resolution | 720 x 1612 pixels, 20:9 ratio (~267 ppi density) | 720 x 1560 pixels (~255 ppi density) |
| Screen-to-body | ~84.7% | — |
| Size | 6.6 inches, 104.6 cm2 (~84.7% screen-to-body ratio) | 6.73 inches |
| Type | IPS LCD, 90Hz | HD+ display, 120Hz, 450 nits |
PLATFORM4 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| CPU | Octa-core (4x2.3 GHz Cortex-A53 & 4x1.7 GHz Cortex-A53) | Octa-core (2x 1.8 GHz Cortex-A75 + 6x 1.6 GHz Cortex-A55) |
| Chipset | Mediatek MT6765 Helio G37 (12 nm) | Unisoc T615 (12 nm) |
| GPU | PowerVR GE8320 | Mali-G57 (1 core @ 850 MHz) |
| OS | Android 13, HIOS 12 | Android 16 (OTA supported) |
MEMORY5 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| Card slot | microSDXC | microSD, up to 1TB (uses SIM 2 slot) |
| Internal | 64GB, 128GB | 128GB / 256GB / 512GB |
| RAM | 4GB RAM, 8GB RAM | 4GB / 8GB; virtual RAM expansion up to 16GB (4+12) / 24GB (8+16) |
| Storage Type | — | uMCP |
| Storage/RAM variants | 64GB, 128GB; 4GB RAM, 8GB RAM | 8GB+512GB (Oukitel store); 4GB+128GB (Jumia Nigeria); spec sheet lists 4GB/8GB RAM and 128GB/256GB/512GB storage |
MAIN CAMERA3 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| Features | Dual-LED flash, HDR, panorama | LED flash, HDR, panorama, portrait, beauty, AI |
| MAIN CAMERA | 50 MP, (wide), 0.7µm, PDAF 0.08 MP (auxiliary lens) | 64 MP, f/1.8, 1/2" (OmniVision OV64B40), 80.3° FoV, AF | 0.08 MP, 1/10" (GC6133), depth |
| Video | 1080p@30fps | 1080p@30fps |
SELFIE CAMERA3 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| Features | Dual-LED flash | Beauty mode |
| Selfie camera | 8 MP, (wide) | 8 MP, f/2.0, 1/4" (Sony IMX219), 77.5° FoV, fixed focus |
| Video | 1080p@30fps | 720p@30fps |
SOUND2 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| 3.5mm jack | Yes | No (headphones via USB Type-C) |
| Loudspeaker | Yes | Yes, with audio amplifier |
COMMUNICATION6 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| Bluetooth | 5.0, A2DP, LE | 5.2 |
| NFC | Yes | Yes |
| Positioning | GPS | GPS, GLONASS, BeiDou, Galileo |
| Radio | FM radio | No |
| USB | USB Type-C 2.0 | USB Type-C, OTG |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band | Wi-Fi 802.11 a/b/g/n/ac, dual-band 2.4G + 5G |
FEATURES2 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| Other features | — | 0.8 m drop resistance (16 drops); operating temperature -20°C to +55°C; protective case in box |
| Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass | Side-mounted fingerprint, accelerometer (G-sensor), compass, ambient light (no proximity sensor listed) |
BATTERY3 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| Capacity | 5000 mAh | 5000 mAh |
| Charging Type | 18W wired | 18W wired (50% in 40 min, 80% in 65 min, 100% in 123 min); reverse charging |
| Type | 5000 mAh | Li-Po (polymer) 5000 mAh |
ADDITIONAL INFORMATION5 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| Colors | Black, Blue, White, Skin Orange | Orange; Black; Grey; Gold; Purple |
| Compatibility | — | 4G-only (no 5G); no FM radio; no LTE band 13/71; hybrid SIM/microSD slot; Android 16 at launch |
| Launch Price (USD) | $121.00 (reference only — see Price in Nigeria above for the actual retail price) | — |
| Models | KI5q | C66 |
| Price in Nigeria | ₦160,000 (Seller price) | ₦165,600 (Stored estimate) |
TESTS2 fields
| Specification | Spark 10 | C66 |
|---|---|---|
| Battery Endurance | — | Video 8 h, calling 35 h, music 24 h, gaming 8 h, standby 830 h (Oukitel manufacturer figures) |
| Performance | — | AnTuTu 10: 267,410 (Oukitel manufacturer figure) |
SECURITY1 field
| Specification | Spark 10 | C66 |
|---|---|---|
| Security | Biometric security: Fingerprint (side-mounted). | Side-mounted fingerprint; face unlock |