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Our Verdict
Analysis
Lenovo IdeaPad S2 has the bigger display.
Overall Winner
Lenovo IdeaPad S2
Display Winner
Lenovo IdeaPad S2
Performance Winner
Tie
Camera Winner
Tie
Battery Winner
Tie
Value Winner
Tie
Specifications Comparison
| Feature | Lenovo IdeaPad S2 | Xiaomi 15 Ultra |
|---|---|---|
| Display size (in) | 10.00 | 6.73 |
| Main camera (MP) | 5.00 | 50.00 |
| Weight (g) | 580 | 226 |
| Chipset | Qualcomm MSM8960 Snapdragon S4 Plus | Snapdragon 8 Elite |
| OS | Android 4.0 (Ice Cream Sandwich) | Android 15, HyperOS 2 |
Pros & Cons
Lenovo IdeaPad S2
Xiaomi 15 Ultra
- Outstanding camera versatility
- Fast wired and wireless charging
- Bright display
- Heavy
- Software still polishing animations
- Limited availability in some regions
Every Spec, Side by Side
Specification
Lenovo
Lenovo IdeaPad S2
Xiaomi
Xiaomi 15 Ultra
Battery 4 specs
Type
Non-removable Li-Ion 1350 mAh battery
Market-dependent versions:· Si/C Li-Ion 5410 mAh - Global· Si/C Li-Ion 6000 mAh - China
Talk time
Up to 9 h (multimedia)
—
Capacity
—
5410 mAh
Charging
—
90W wired, 80W wireless
Body 5 specs
Dimensions
-
161.3 x 75.3 x 9.35 mm
Weight
580 g (1.28 lb)
226 g
SIM
Mini-SIM
· Nano-SIM + Nano-SIM· Nano-SIM + Nano-SIM + eSIM + eSIM (max 2 at a time)
Build
—
Glass front, glass-fiber reinforced plastic back or silicone polymer back (eco leather), aluminum frame
—
IP68 dust tight and water resistant (immersible up to 1.5m for 30 min)
Aerospace-grade glass fiber
Connectivity 8 specs
WLAN
Wi-Fi 802.11 b/g/n, hotspot
Wi-Fi 802.11 a/b/g/n/ac/6e/7, dual-band or tri-band, Wi-Fi Direct
Bluetooth
2.1, A2DP, EDR
6.0, A2DP, LE, aptX HD, aptX Adaptive, LHDC 5
Radio
No
No
USB
microUSB 2.0
USB Type-C 3.2 Gen 2, DisplayPort, OTG
Positioning
—
GPS (L1+L5), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5), GLONASS
Infrared port
—
Yes
5G
—
Yes
NFC
—
Yes
Display 4 specs
Type
LED-backlit IPS LCD
LTPO AMOLED
Size
10.0 inches, 290.0 cm2
6.73 inches
Resolution
800 x 1280 pixels, 16:10 ratio (~151 ppi density)
1440 x 3200 pixels
Protection
—
Xiaomi Shield Glass 2.0, Mohs level 6
Features 2 specs
Sensors
Accelerometer, gyro, compass
Fingerprint (under display, ultrasonic), accelerometer, proximity, gyro, compass, barometer
HDMI port
MP3/WAV/WMA/AAC player
MP4/H.264 player
Document viewer
Organizer
Predictive text input
Two-way satellite communication (China model only)
Launch 2 specs
Announced
2012, January. Released 2012, September
2025, February 27
Status
Discontinued
Available. Released 2025, February 27
Main Camera 4 specs
Single
5 MP, AF
—
Video
Yes
8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240/480/960/1920fps, gyro-EIS, Dolby Vision HDR 10-bit rec. (4K@60fps, 1080p)
Features
—
Laser AF, color spectrum sensor, Leica lenses, Dual-LED flash, HDR, panorama, 67mm filter ring holder (optional)
Quad
—
50 MP + 50 MP + 200 MP + 50 MP
Memory 5 specs
Card slot
microSDHC (dedicated slot)
No
Internal
32GB 1GB RAM, 64GB 1GB RAM
256GB 12GB RAM, 512GB 16GB RAM, 1TB 16GB RAM
—
UFS 4.1
RAM
—
16GB
Storage
—
512GB
Misc 4 specs
Colors
Black
Black, White, Silver Chrome, Green
Models
—
25010PN30G
SAR EU
—
1.00 W/kg (head) 1.00 W/kg (body)
Price
—
$ 693.75 / £ 1,295.00 / € 812.34
Network 7 specs
Technology
GSM / HSPA
GSM / HSPA / LTE / 5G
2G bands
GSM 850 / 900 / 1800 / 1900
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 2100
HSDPA 800 / 850 / 900 / 1700(AWS) / 1900 / 2100
Speed
HSPA
HSPA, LTE, 5G
4G bands
—
1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 32, 38, 39, 40, 41, 42, 48, 66, 71 - International
—
1, 2, 3, 5, 7, 8, 12, 20, 26, 28, 38, 40, 41, 48, 66, 77, 78, 79, 80, 81, 83, 84, 89 SA/NSA - China
5G bands
—
1, 2, 3, 5, 7, 8, 12, 20, 25, 26, 28, 38, 40, 41, 48, 66, 71, 75, 77, 78, 79 SA/NSA - International
Platform 4 specs
OS
Android 4.0 (Ice Cream Sandwich)
Android 15, HyperOS 2
Chipset
Qualcomm MSM8960 Snapdragon S4 Plus
Snapdragon 8 Elite
CPU
Dual-core 1.5 GHz Krait
Octa-core (2x4.32 GHz Oryon V2 Phoenix L + 6x3.53 GHz Oryon V2 Phoenix M)
GPU
Adreno 225
Adreno 830
Selfie Camera 3 specs
Single
Yes
32 MP
Features
—
HDR, panorama
Video
—
4K@30/60fps, 1080p@30/60fps, gyro-EIS
Sound 3 specs
Loudspeaker
Yes, with stereo speakers
Yes, with stereo speakers
3.5mm jack
Yes
No
—
24-bit/192kHz Hi-Res & Hi-Res Wireless audio
Qualcomm XPAN (24-bit/96kHz audio)
Eu Label 4 specs
Energy
—
Class A
Battery
—
58:58h endurance, 1000 cycles
Free fall
—
Class C (90 falls)
Repairability
—
Class C
Our Tests 2 specs
Loudspeaker
—
-24.1 LUFS (Very good)
Battery
—
Active use score 16:13h
Similar Comparisons
Common Questions
Which phone is the best in this comparison?
Lenovo IdeaPad S2 has the bigger display.
How are the comparison winners decided?
We compare measurable specs (display size, battery capacity, RAM, charging, weight) and price (USD). When two phones tie or data is missing we mark the category "Depends".
Which is more affordable?
The cheaper option is shown as the value winner above. Prices are USD and may vary by region or retailer.